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Finding the Fourth Proportional to 704,869.75, 972,694.16 and 382,572.92

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Solution

The fourth proportional to 704,869.75, 972,694.16 and 382,572.92 is: 527,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,869.75 : 972,694.16 = 382,572.92 : x
  2. Step 2: Convert to fraction form
    704,869.75/972,694.16 = 382,572.92/x
  3. Step 3: Cross multiply
    704,869.75x = 972,694.16 × 382,572.92
  4. Step 4: Simplify right side
    704,869.75x = 372,126,443,145.28
  5. Step 5: Solve for x
    x = 372,126,443,145.28/704,869.75
  6. Step 6: Final answer
    x = 527,936.47

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.