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Finding the Fourth Proportional to 423,306.64, 635,154.36 and 183,493.72

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Solution

The fourth proportional to 423,306.64, 635,154.36 and 183,493.72 is: 275,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,306.64 : 635,154.36 = 183,493.72 : x
  2. Step 2: Convert to fraction form
    423,306.64/635,154.36 = 183,493.72/x
  3. Step 3: Cross multiply
    423,306.64x = 635,154.36 × 183,493.72
  4. Step 4: Simplify right side
    423,306.64x = 116,546,836,290.62
  5. Step 5: Solve for x
    x = 116,546,836,290.62/423,306.64
  6. Step 6: Final answer
    x = 275,324.85

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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.