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Finding the Fourth Proportional to 625,881.26, 938,822.58 and 226,428.45

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Solution

The fourth proportional to 625,881.26, 938,822.58 and 226,428.45 is: 339,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,881.26 : 938,822.58 = 226,428.45 : x
  2. Step 2: Convert to fraction form
    625,881.26/938,822.58 = 226,428.45/x
  3. Step 3: Cross multiply
    625,881.26x = 938,822.58 × 226,428.45
  4. Step 4: Simplify right side
    625,881.26x = 212,576,141,614.40
  5. Step 5: Solve for x
    x = 212,576,141,614.40/625,881.26
  6. Step 6: Final answer
    x = 339,642.93

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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.