Home / 691,407.70-1,037,111.55-551,439.70

Finding the Fourth Proportional to 691,407.70, 1,037,111.55 and 551,439.70

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Solution

The fourth proportional to 691,407.70, 1,037,111.55 and 551,439.70 is: 827,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,407.70 : 1,037,111.55 = 551,439.70 : x
  2. Step 2: Convert to fraction form
    691,407.70/1,037,111.55 = 551,439.70/x
  3. Step 3: Cross multiply
    691,407.70x = 1,037,111.55 × 551,439.70
  4. Step 4: Simplify right side
    691,407.70x = 571,904,481,998.54
  5. Step 5: Solve for x
    x = 571,904,481,998.54/691,407.70
  6. Step 6: Final answer
    x = 827,159.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.