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Finding the Fourth Proportional to 626,836.88, 865,034.89 and 358,564.88

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Solution

The fourth proportional to 626,836.88, 865,034.89 and 358,564.88 is: 494,819.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,836.88 : 865,034.89 = 358,564.88 : x
  2. Step 2: Convert to fraction form
    626,836.88/865,034.89 = 358,564.88/x
  3. Step 3: Cross multiply
    626,836.88x = 865,034.89 × 358,564.88
  4. Step 4: Simplify right side
    626,836.88x = 310,171,126,307.08
  5. Step 5: Solve for x
    x = 310,171,126,307.08/626,836.88
  6. Step 6: Final answer
    x = 494,819.53

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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.