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Finding the Fourth Proportional to 318,353.73, 439,318.89 and 175,113.74

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Solution

The fourth proportional to 318,353.73, 439,318.89 and 175,113.74 is: 241,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,353.73 : 439,318.89 = 175,113.74 : x
  2. Step 2: Convert to fraction form
    318,353.73/439,318.89 = 175,113.74/x
  3. Step 3: Cross multiply
    318,353.73x = 439,318.89 × 175,113.74
  4. Step 4: Simplify right side
    318,353.73x = 76,930,773,880.55
  5. Step 5: Solve for x
    x = 76,930,773,880.55/318,353.73
  6. Step 6: Final answer
    x = 241,651.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.