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Finding the Fourth Proportional to 373,349.20, 560,023.80 and 215,885.20

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Solution

The fourth proportional to 373,349.20, 560,023.80 and 215,885.20 is: 323,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,349.20 : 560,023.80 = 215,885.20 : x
  2. Step 2: Convert to fraction form
    373,349.20/560,023.80 = 215,885.20/x
  3. Step 3: Cross multiply
    373,349.20x = 560,023.80 × 215,885.20
  4. Step 4: Simplify right side
    373,349.20x = 120,900,850,067.76
  5. Step 5: Solve for x
    x = 120,900,850,067.76/373,349.20
  6. Step 6: Final answer
    x = 323,827.80

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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.