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Finding the Fourth Proportional to 281,590.38, 423,584.21 and 255,253.97

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Solution

The fourth proportional to 281,590.38, 423,584.21 and 255,253.97 is: 383,967.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,590.38 : 423,584.21 = 255,253.97 : x
  2. Step 2: Convert to fraction form
    281,590.38/423,584.21 = 255,253.97/x
  3. Step 3: Cross multiply
    281,590.38x = 423,584.21 × 255,253.97
  4. Step 4: Simplify right side
    281,590.38x = 108,121,549,828.35
  5. Step 5: Solve for x
    x = 108,121,549,828.35/281,590.38
  6. Step 6: Final answer
    x = 383,967.48

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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.