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Finding the Fourth Proportional to 635,131.13, 876,491.23 and 344,748.45

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Solution

The fourth proportional to 635,131.13, 876,491.23 and 344,748.45 is: 475,758.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,131.13 : 876,491.23 = 344,748.45 : x
  2. Step 2: Convert to fraction form
    635,131.13/876,491.23 = 344,748.45/x
  3. Step 3: Cross multiply
    635,131.13x = 876,491.23 × 344,748.45
  4. Step 4: Simplify right side
    635,131.13x = 302,168,996,052.47
  5. Step 5: Solve for x
    x = 302,168,996,052.47/635,131.13
  6. Step 6: Final answer
    x = 475,758.44

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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.