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Finding the Fourth Proportional to 418,058.49, 627,084.27 and 248,455.61

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Solution

The fourth proportional to 418,058.49, 627,084.27 and 248,455.61 is: 372,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,058.49 : 627,084.27 = 248,455.61 : x
  2. Step 2: Convert to fraction form
    418,058.49/627,084.27 = 248,455.61/x
  3. Step 3: Cross multiply
    418,058.49x = 627,084.27 × 248,455.61
  4. Step 4: Simplify right side
    418,058.49x = 155,802,604,824.26
  5. Step 5: Solve for x
    x = 155,802,604,824.26/418,058.49
  6. Step 6: Final answer
    x = 372,681.36

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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.