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Finding the Fourth Proportional to 704,867.74, 972,691.40 and 382,570.92

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Solution

The fourth proportional to 704,867.74, 972,691.40 and 382,570.92 is: 527,933.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,867.74 : 972,691.40 = 382,570.92 : x
  2. Step 2: Convert to fraction form
    704,867.74/972,691.40 = 382,570.92/x
  3. Step 3: Cross multiply
    704,867.74x = 972,691.40 × 382,570.92
  4. Step 4: Simplify right side
    704,867.74x = 372,123,444,730.52
  5. Step 5: Solve for x
    x = 372,123,444,730.52/704,867.74
  6. Step 6: Final answer
    x = 527,933.72

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Double scale
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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.