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Finding the Fourth Proportional to 361,653.13, 542,569.89 and 255,244.93

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Solution

The fourth proportional to 361,653.13, 542,569.89 and 255,244.93 is: 382,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,653.13 : 542,569.89 = 255,244.93 : x
  2. Step 2: Convert to fraction form
    361,653.13/542,569.89 = 255,244.93/x
  3. Step 3: Cross multiply
    361,653.13x = 542,569.89 × 255,244.93
  4. Step 4: Simplify right side
    361,653.13x = 138,488,213,593.16
  5. Step 5: Solve for x
    x = 138,488,213,593.16/361,653.13
  6. Step 6: Final answer
    x = 382,931.05

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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.