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Finding the Fourth Proportional to 351,695.52, 527,543.94 and 85,456.26

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Solution

The fourth proportional to 351,695.52, 527,543.94 and 85,456.26 is: 128,184.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,695.52 : 527,543.94 = 85,456.26 : x
  2. Step 2: Convert to fraction form
    351,695.52/527,543.94 = 85,456.26/x
  3. Step 3: Cross multiply
    351,695.52x = 527,543.94 × 85,456.26
  4. Step 4: Simplify right side
    351,695.52x = 45,081,932,098.06
  5. Step 5: Solve for x
    x = 45,081,932,098.06/351,695.52
  6. Step 6: Final answer
    x = 128,184.55

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1.5x scale

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.