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Finding the Fourth Proportional to 447,909.60, 672,123.60 and 167,455.20

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Solution

The fourth proportional to 447,909.60, 672,123.60 and 167,455.20 is: 251,279.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,909.60 : 672,123.60 = 167,455.20 : x
  2. Step 2: Convert to fraction form
    447,909.60/672,123.60 = 167,455.20/x
  3. Step 3: Cross multiply
    447,909.60x = 672,123.60 × 167,455.20
  4. Step 4: Simplify right side
    447,909.60x = 112,550,591,862.72
  5. Step 5: Solve for x
    x = 112,550,591,862.72/447,909.60
  6. Step 6: Final answer
    x = 251,279.70

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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.