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Finding the Fourth Proportional to 635,178.90, 876,564.43 and 359,514.84

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Solution

The fourth proportional to 635,178.90, 876,564.43 and 359,514.84 is: 496,140.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,178.90 : 876,564.43 = 359,514.84 : x
  2. Step 2: Convert to fraction form
    635,178.90/876,564.43 = 359,514.84/x
  3. Step 3: Cross multiply
    635,178.90x = 876,564.43 × 359,514.84
  4. Step 4: Simplify right side
    635,178.90x = 315,137,919,902.35
  5. Step 5: Solve for x
    x = 315,137,919,902.35/635,178.90
  6. Step 6: Final answer
    x = 496,140.41

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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.