Home / 914,213,613.03-1,261,572,560.82-517,739,439.75

Finding the Fourth Proportional to 914,213,613.03, 1,261,572,560.82 and 517,739,439.75

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Solution

The fourth proportional to 914,213,613.03, 1,261,572,560.82 and 517,739,439.75 is: 714,456,513.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,213,613.03 : 1,261,572,560.82 = 517,739,439.75 : x
  2. Step 2: Convert to fraction form
    914,213,613.03/1,261,572,560.82 = 517,739,439.75/x
  3. Step 3: Cross multiply
    914,213,613.03x = 1,261,572,560.82 × 517,739,439.75
  4. Step 4: Simplify right side
    914,213,613.03x = 653,165,870,842,919,552
  5. Step 5: Solve for x
    x = 653,165,870,842,919,552/914,213,613.03
  6. Step 6: Final answer
    x = 714,456,513.81

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Half scale
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Double scale
Find fourth proportional to 914,213,614.03, 1,261,572,562.20 and 517,739,440.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.