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Finding the Fourth Proportional to 648,517.20, 894,861.18 and 362,031

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Solution

The fourth proportional to 648,517.20, 894,861.18 and 362,031 is: 499,551.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,517.20 : 894,861.18 = 362,031 : x
  2. Step 2: Convert to fraction form
    648,517.20/894,861.18 = 362,031/x
  3. Step 3: Cross multiply
    648,517.20x = 894,861.18 × 362,031
  4. Step 4: Simplify right side
    648,517.20x = 323,967,487,856.58
  5. Step 5: Solve for x
    x = 323,967,487,856.58/648,517.20
  6. Step 6: Final answer
    x = 499,551.11

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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.