Home / 1,213,248,641.90-1,674,279,476.80-656,331,534.86

Finding the Fourth Proportional to 1,213,248,641.90, 1,674,279,476.80 and 656,331,534.86

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Solution

The fourth proportional to 1,213,248,641.90, 1,674,279,476.80 and 656,331,534.86 is: 905,735,544.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,248,641.90 : 1,674,279,476.80 = 656,331,534.86 : x
  2. Step 2: Convert to fraction form
    1,213,248,641.90/1,674,279,476.80 = 656,331,534.86/x
  3. Step 3: Cross multiply
    1,213,248,641.90x = 1,674,279,476.80 × 656,331,534.86
  4. Step 4: Simplify right side
    1,213,248,641.90x = 1,098,882,418,782,729,472
  5. Step 5: Solve for x
    x = 1,098,882,418,782,729,472/1,213,248,641.90
  6. Step 6: Final answer
    x = 905,735,544.09

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Double scale
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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.