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Finding the Fourth Proportional to 359,188.28, 534,541.45 and 347,228.36

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Solution

The fourth proportional to 359,188.28, 534,541.45 and 347,228.36 is: 516,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,188.28 : 534,541.45 = 347,228.36 : x
  2. Step 2: Convert to fraction form
    359,188.28/534,541.45 = 347,228.36/x
  3. Step 3: Cross multiply
    359,188.28x = 534,541.45 × 347,228.36
  4. Step 4: Simplify right side
    359,188.28x = 185,607,951,035.52
  5. Step 5: Solve for x
    x = 185,607,951,035.52/359,188.28
  6. Step 6: Final answer
    x = 516,742.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.