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Finding the Fourth Proportional to 544,713.30, 816,807.51 and 189,719.46

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Solution

The fourth proportional to 544,713.30, 816,807.51 and 189,719.46 is: 284,487.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,713.30 : 816,807.51 = 189,719.46 : x
  2. Step 2: Convert to fraction form
    544,713.30/816,807.51 = 189,719.46/x
  3. Step 3: Cross multiply
    544,713.30x = 816,807.51 × 189,719.46
  4. Step 4: Simplify right side
    544,713.30x = 154,964,279,721.15
  5. Step 5: Solve for x
    x = 154,964,279,721.15/544,713.30
  6. Step 6: Final answer
    x = 284,487.78

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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.