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Finding the Fourth Proportional to 476,734.60, 715,101.90 and 252,008.20

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Solution

The fourth proportional to 476,734.60, 715,101.90 and 252,008.20 is: 378,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,734.60 : 715,101.90 = 252,008.20 : x
  2. Step 2: Convert to fraction form
    476,734.60/715,101.90 = 252,008.20/x
  3. Step 3: Cross multiply
    476,734.60x = 715,101.90 × 252,008.20
  4. Step 4: Simplify right side
    476,734.60x = 180,211,542,635.58
  5. Step 5: Solve for x
    x = 180,211,542,635.58/476,734.60
  6. Step 6: Final answer
    x = 378,012.30

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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.