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Finding the Fourth Proportional to 541,645.14, 747,469.15 and 312,200.88

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Solution

The fourth proportional to 541,645.14, 747,469.15 and 312,200.88 is: 430,836.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,645.14 : 747,469.15 = 312,200.88 : x
  2. Step 2: Convert to fraction form
    541,645.14/747,469.15 = 312,200.88/x
  3. Step 3: Cross multiply
    541,645.14x = 747,469.15 × 312,200.88
  4. Step 4: Simplify right side
    541,645.14x = 233,360,526,402.85
  5. Step 5: Solve for x
    x = 233,360,526,402.85/541,645.14
  6. Step 6: Final answer
    x = 430,836.56

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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.