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Finding the Fourth Proportional to 385,059.41, 577,627.69 and 132,306.60

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Solution

The fourth proportional to 385,059.41, 577,627.69 and 132,306.60 is: 198,473.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,059.41 : 577,627.69 = 132,306.60 : x
  2. Step 2: Convert to fraction form
    385,059.41/577,627.69 = 132,306.60/x
  3. Step 3: Cross multiply
    385,059.41x = 577,627.69 × 132,306.60
  4. Step 4: Simplify right side
    385,059.41x = 76,423,955,729.75
  5. Step 5: Solve for x
    x = 76,423,955,729.75/385,059.41
  6. Step 6: Final answer
    x = 198,473.15

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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.