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Finding the Fourth Proportional to 372,841.20, 514,711.80 and 252,615.60

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Solution

The fourth proportional to 372,841.20, 514,711.80 and 252,615.60 is: 348,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,841.20 : 514,711.80 = 252,615.60 : x
  2. Step 2: Convert to fraction form
    372,841.20/514,711.80 = 252,615.60/x
  3. Step 3: Cross multiply
    372,841.20x = 514,711.80 × 252,615.60
  4. Step 4: Simplify right side
    372,841.20x = 130,024,230,184.08
  5. Step 5: Solve for x
    x = 130,024,230,184.08/372,841.20
  6. Step 6: Final answer
    x = 348,738.90

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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.