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Finding the Fourth Proportional to 704,891.55, 972,724.17 and 382,594.71

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Solution

The fourth proportional to 704,891.55, 972,724.17 and 382,594.71 is: 527,966.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,891.55 : 972,724.17 = 382,594.71 : x
  2. Step 2: Convert to fraction form
    704,891.55/972,724.17 = 382,594.71/x
  3. Step 3: Cross multiply
    704,891.55x = 972,724.17 × 382,594.71
  4. Step 4: Simplify right side
    704,891.55x = 372,159,121,731.14
  5. Step 5: Solve for x
    x = 372,159,121,731.14/704,891.55
  6. Step 6: Final answer
    x = 527,966.50

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Half scale
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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.