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Finding the Fourth Proportional to 635,914.71, 877,552.17 and 349,428.65

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Solution

The fourth proportional to 635,914.71, 877,552.17 and 349,428.65 is: 482,205.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,914.71 : 877,552.17 = 349,428.65 : x
  2. Step 2: Convert to fraction form
    635,914.71/877,552.17 = 349,428.65/x
  3. Step 3: Cross multiply
    635,914.71x = 877,552.17 × 349,428.65
  4. Step 4: Simplify right side
    635,914.71x = 306,641,865,679.91
  5. Step 5: Solve for x
    x = 306,641,865,679.91/635,914.71
  6. Step 6: Final answer
    x = 482,205.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.