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Finding the Fourth Proportional to 318,565.60, 477,512.88 and 160,461.76

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Solution

The fourth proportional to 318,565.60, 477,512.88 and 160,461.76 is: 240,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,565.60 : 477,512.88 = 160,461.76 : x
  2. Step 2: Convert to fraction form
    318,565.60/477,512.88 = 160,461.76/x
  3. Step 3: Cross multiply
    318,565.60x = 477,512.88 × 160,461.76
  4. Step 4: Simplify right side
    318,565.60x = 76,622,557,147.47
  5. Step 5: Solve for x
    x = 76,622,557,147.47/318,565.60
  6. Step 6: Final answer
    x = 240,523.64

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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.