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Finding the Fourth Proportional to 627,710.58, 865,936.17 and 372,881.34

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Solution

The fourth proportional to 627,710.58, 865,936.17 and 372,881.34 is: 514,395.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,710.58 : 865,936.17 = 372,881.34 : x
  2. Step 2: Convert to fraction form
    627,710.58/865,936.17 = 372,881.34/x
  3. Step 3: Cross multiply
    627,710.58x = 865,936.17 × 372,881.34
  4. Step 4: Simplify right side
    627,710.58x = 322,891,439,424.07
  5. Step 5: Solve for x
    x = 322,891,439,424.07/627,710.58
  6. Step 6: Final answer
    x = 514,395.41

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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.