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Finding the Fourth Proportional to 318,407.32, 477,217.32 and 160,680.88

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Solution

The fourth proportional to 318,407.32, 477,217.32 and 160,680.88 is: 240,822.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,407.32 : 477,217.32 = 160,680.88 : x
  2. Step 2: Convert to fraction form
    318,407.32/477,217.32 = 160,680.88/x
  3. Step 3: Cross multiply
    318,407.32x = 477,217.32 × 160,680.88
  4. Step 4: Simplify right side
    318,407.32x = 76,679,698,928.84
  5. Step 5: Solve for x
    x = 76,679,698,928.84/318,407.32
  6. Step 6: Final answer
    x = 240,822.66

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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.