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Finding the Fourth Proportional to 719,063.86, 992,306.96 and 396,773.70

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Solution

The fourth proportional to 719,063.86, 992,306.96 and 396,773.70 is: 547,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,063.86 : 992,306.96 = 396,773.70 : x
  2. Step 2: Convert to fraction form
    719,063.86/992,306.96 = 396,773.70/x
  3. Step 3: Cross multiply
    719,063.86x = 992,306.96 × 396,773.70
  4. Step 4: Simplify right side
    719,063.86x = 393,721,304,054.95
  5. Step 5: Solve for x
    x = 393,721,304,054.95/719,063.86
  6. Step 6: Final answer
    x = 547,547.06

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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.