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Finding the Fourth Proportional to 318,407.57, 477,217.70 and 160,681.13

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Solution

The fourth proportional to 318,407.57, 477,217.70 and 160,681.13 is: 240,823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,407.57 : 477,217.70 = 160,681.13 : x
  2. Step 2: Convert to fraction form
    318,407.57/477,217.70 = 160,681.13/x
  3. Step 3: Cross multiply
    318,407.57x = 477,217.70 × 160,681.13
  4. Step 4: Simplify right side
    318,407.57x = 76,679,878,488.60
  5. Step 5: Solve for x
    x = 76,679,878,488.60/318,407.57
  6. Step 6: Final answer
    x = 240,823.04

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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.