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Finding the Fourth Proportional to 281,592.39, 423,587.21 and 255,255.97

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Solution

The fourth proportional to 281,592.39, 423,587.21 and 255,255.97 is: 383,970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,592.39 : 423,587.21 = 255,255.97 : x
  2. Step 2: Convert to fraction form
    281,592.39/423,587.21 = 255,255.97/x
  3. Step 3: Cross multiply
    281,592.39x = 423,587.21 × 255,255.97
  4. Step 4: Simplify right side
    281,592.39x = 108,123,164,168.14
  5. Step 5: Solve for x
    x = 108,123,164,168.14/281,592.39
  6. Step 6: Final answer
    x = 383,970.48

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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.