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Finding the Fourth Proportional to 452,993.31, 679,621.19 and 186,616.71

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Solution

The fourth proportional to 452,993.31, 679,621.19 and 186,616.71 is: 279,979.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,993.31 : 679,621.19 = 186,616.71 : x
  2. Step 2: Convert to fraction form
    452,993.31/679,621.19 = 186,616.71/x
  3. Step 3: Cross multiply
    452,993.31x = 679,621.19 × 186,616.71
  4. Step 4: Simplify right side
    452,993.31x = 126,828,669,591.00
  5. Step 5: Solve for x
    x = 126,828,669,591.00/452,993.31
  6. Step 6: Final answer
    x = 279,979.12

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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.