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Finding the Fourth Proportional to 376,071.84, 518,970.24 and 206,304.48

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Solution

The fourth proportional to 376,071.84, 518,970.24 and 206,304.48 is: 284,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,071.84 : 518,970.24 = 206,304.48 : x
  2. Step 2: Convert to fraction form
    376,071.84/518,970.24 = 206,304.48/x
  3. Step 3: Cross multiply
    376,071.84x = 518,970.24 × 206,304.48
  4. Step 4: Simplify right side
    376,071.84x = 107,065,885,498.68
  5. Step 5: Solve for x
    x = 107,065,885,498.68/376,071.84
  6. Step 6: Final answer
    x = 284,695.30

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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.