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Finding the Fourth Proportional to 527,287.80, 790,845.30 and 148,234.20

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Solution

The fourth proportional to 527,287.80, 790,845.30 and 148,234.20 is: 222,327.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,287.80 : 790,845.30 = 148,234.20 : x
  2. Step 2: Convert to fraction form
    527,287.80/790,845.30 = 148,234.20/x
  3. Step 3: Cross multiply
    527,287.80x = 790,845.30 × 148,234.20
  4. Step 4: Simplify right side
    527,287.80x = 117,230,320,369.26
  5. Step 5: Solve for x
    x = 117,230,320,369.26/527,287.80
  6. Step 6: Final answer
    x = 222,327.01

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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.