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Finding the Fourth Proportional to 423,642.96, 635,732.28 and 236,777.04

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Solution

The fourth proportional to 423,642.96, 635,732.28 and 236,777.04 is: 355,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,642.96 : 635,732.28 = 236,777.04 : x
  2. Step 2: Convert to fraction form
    423,642.96/635,732.28 = 236,777.04/x
  3. Step 3: Cross multiply
    423,642.96x = 635,732.28 × 236,777.04
  4. Step 4: Simplify right side
    423,642.96x = 150,526,807,490.85
  5. Step 5: Solve for x
    x = 150,526,807,490.85/423,642.96
  6. Step 6: Final answer
    x = 355,315.26

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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.