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Finding the Fourth Proportional to 374,610.30, 561,915.45 and 225,311.10

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Solution

The fourth proportional to 374,610.30, 561,915.45 and 225,311.10 is: 337,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,610.30 : 561,915.45 = 225,311.10 : x
  2. Step 2: Convert to fraction form
    374,610.30/561,915.45 = 225,311.10/x
  3. Step 3: Cross multiply
    374,610.30x = 561,915.45 × 225,311.10
  4. Step 4: Simplify right side
    374,610.30x = 126,605,788,146.50
  5. Step 5: Solve for x
    x = 126,605,788,146.50/374,610.30
  6. Step 6: Final answer
    x = 337,966.65

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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.