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Finding the Fourth Proportional to 654,331.80, 981,497.70 and 591,346.20

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Solution

The fourth proportional to 654,331.80, 981,497.70 and 591,346.20 is: 887,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,331.80 : 981,497.70 = 591,346.20 : x
  2. Step 2: Convert to fraction form
    654,331.80/981,497.70 = 591,346.20/x
  3. Step 3: Cross multiply
    654,331.80x = 981,497.70 × 591,346.20
  4. Step 4: Simplify right side
    654,331.80x = 580,404,935,203.74
  5. Step 5: Solve for x
    x = 580,404,935,203.74/654,331.80
  6. Step 6: Final answer
    x = 887,019.30

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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.