Home / 516,091.20-774,136.80-437,553.60

Finding the Fourth Proportional to 516,091.20, 774,136.80 and 437,553.60

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Solution

The fourth proportional to 516,091.20, 774,136.80 and 437,553.60 is: 656,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,091.20 : 774,136.80 = 437,553.60 : x
  2. Step 2: Convert to fraction form
    516,091.20/774,136.80 = 437,553.60/x
  3. Step 3: Cross multiply
    516,091.20x = 774,136.80 × 437,553.60
  4. Step 4: Simplify right side
    516,091.20x = 338,726,343,732.48
  5. Step 5: Solve for x
    x = 338,726,343,732.48/516,091.20
  6. Step 6: Final answer
    x = 656,330.40

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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.