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Finding the Fourth Proportional to 449,646.54, 674,272.17 and 239,234.46

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Solution

The fourth proportional to 449,646.54, 674,272.17 and 239,234.46 is: 358,746.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,646.54 : 674,272.17 = 239,234.46 : x
  2. Step 2: Convert to fraction form
    449,646.54/674,272.17 = 239,234.46/x
  3. Step 3: Cross multiply
    449,646.54x = 674,272.17 × 239,234.46
  4. Step 4: Simplify right side
    449,646.54x = 161,309,138,482.98
  5. Step 5: Solve for x
    x = 161,309,138,482.98/449,646.54
  6. Step 6: Final answer
    x = 358,746.54

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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.