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Finding the Fourth Proportional to 703,191.86, 970,335.24 and 393,036.38

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Solution

The fourth proportional to 703,191.86, 970,335.24 and 393,036.38 is: 542,351.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,191.86 : 970,335.24 = 393,036.38 : x
  2. Step 2: Convert to fraction form
    703,191.86/970,335.24 = 393,036.38/x
  3. Step 3: Cross multiply
    703,191.86x = 970,335.24 × 393,036.38
  4. Step 4: Simplify right side
    703,191.86x = 381,377,050,116.03
  5. Step 5: Solve for x
    x = 381,377,050,116.03/703,191.86
  6. Step 6: Final answer
    x = 542,351.34

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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.