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Finding the Fourth Proportional to 545,079.52, 753,062.92 and 416,468.12

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Solution

The fourth proportional to 545,079.52, 753,062.92 and 416,468.12 is: 575,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,079.52 : 753,062.92 = 416,468.12 : x
  2. Step 2: Convert to fraction form
    545,079.52/753,062.92 = 416,468.12/x
  3. Step 3: Cross multiply
    545,079.52x = 753,062.92 × 416,468.12
  4. Step 4: Simplify right side
    545,079.52x = 313,626,698,534.11
  5. Step 5: Solve for x
    x = 313,626,698,534.11/545,079.52
  6. Step 6: Final answer
    x = 575,377.88

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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.