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Finding the Fourth Proportional to 261,044.10, 391,566.15 and 229,940.10

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Solution

The fourth proportional to 261,044.10, 391,566.15 and 229,940.10 is: 344,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,044.10 : 391,566.15 = 229,940.10 : x
  2. Step 2: Convert to fraction form
    261,044.10/391,566.15 = 229,940.10/x
  3. Step 3: Cross multiply
    261,044.10x = 391,566.15 × 229,940.10
  4. Step 4: Simplify right side
    261,044.10x = 90,036,759,687.62
  5. Step 5: Solve for x
    x = 90,036,759,687.62/261,044.10
  6. Step 6: Final answer
    x = 344,910.15

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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.