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Finding the Fourth Proportional to 627,543.72, 940,281 and 361,527.96

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Solution

The fourth proportional to 627,543.72, 940,281 and 361,527.96 is: 541,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,543.72 : 940,281 = 361,527.96 : x
  2. Step 2: Convert to fraction form
    627,543.72/940,281 = 361,527.96/x
  3. Step 3: Cross multiply
    627,543.72x = 940,281 × 361,527.96
  4. Step 4: Simplify right side
    627,543.72x = 339,937,871,756.76
  5. Step 5: Solve for x
    x = 339,937,871,756.76/627,543.72
  6. Step 6: Final answer
    x = 541,695.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.