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Finding the Fourth Proportional to 635,076.36, 876,375.45 and 344,681.34

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Solution

The fourth proportional to 635,076.36, 876,375.45 and 344,681.34 is: 475,644.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,076.36 : 876,375.45 = 344,681.34 : x
  2. Step 2: Convert to fraction form
    635,076.36/876,375.45 = 344,681.34/x
  3. Step 3: Cross multiply
    635,076.36x = 876,375.45 × 344,681.34
  4. Step 4: Simplify right side
    635,076.36x = 302,070,264,449.10
  5. Step 5: Solve for x
    x = 302,070,264,449.10/635,076.36
  6. Step 6: Final answer
    x = 475,644.01

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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.