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Finding the Fourth Proportional to 635,028, 876,306.92 and 376,916.18

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Solution

The fourth proportional to 635,028, 876,306.92 and 376,916.18 is: 520,125.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,028 : 876,306.92 = 376,916.18 : x
  2. Step 2: Convert to fraction form
    635,028/876,306.92 = 376,916.18/x
  3. Step 3: Cross multiply
    635,028x = 876,306.92 × 376,916.18
  4. Step 4: Simplify right side
    635,028x = 330,294,250,527.85
  5. Step 5: Solve for x
    x = 330,294,250,527.85/635,028
  6. Step 6: Final answer
    x = 520,125.49

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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.