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Finding the Fourth Proportional to 423,957.80, 584,934.18 and 254,129.96

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Solution

The fourth proportional to 423,957.80, 584,934.18 and 254,129.96 is: 350,622.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,957.80 : 584,934.18 = 254,129.96 : x
  2. Step 2: Convert to fraction form
    423,957.80/584,934.18 = 254,129.96/x
  3. Step 3: Cross multiply
    423,957.80x = 584,934.18 × 254,129.96
  4. Step 4: Simplify right side
    423,957.80x = 148,649,299,766.03
  5. Step 5: Solve for x
    x = 148,649,299,766.03/423,957.80
  6. Step 6: Final answer
    x = 350,622.87

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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.