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Finding the Fourth Proportional to 503,757.49, 755,931.48 and 361,449.40

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Solution

The fourth proportional to 503,757.49, 755,931.48 and 361,449.40 is: 542,385.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,757.49 : 755,931.48 = 361,449.40 : x
  2. Step 2: Convert to fraction form
    503,757.49/755,931.48 = 361,449.40/x
  3. Step 3: Cross multiply
    503,757.49x = 755,931.48 × 361,449.40
  4. Step 4: Simplify right side
    503,757.49x = 273,230,979,887.11
  5. Step 5: Solve for x
    x = 273,230,979,887.11/503,757.49
  6. Step 6: Final answer
    x = 542,385.94

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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.