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Finding the Fourth Proportional to 585,748.98, 877,620.45 and 319,696.17

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Solution

The fourth proportional to 585,748.98, 877,620.45 and 319,696.17 is: 478,996.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,748.98 : 877,620.45 = 319,696.17 : x
  2. Step 2: Convert to fraction form
    585,748.98/877,620.45 = 319,696.17/x
  3. Step 3: Cross multiply
    585,748.98x = 877,620.45 × 319,696.17
  4. Step 4: Simplify right side
    585,748.98x = 280,571,896,578.68
  5. Step 5: Solve for x
    x = 280,571,896,578.68/585,748.98
  6. Step 6: Final answer
    x = 478,996.82

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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.