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Finding the Fourth Proportional to 452,864.22, 679,378.32 and 186,479.46

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Solution

The fourth proportional to 452,864.22, 679,378.32 and 186,479.46 is: 279,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,864.22 : 679,378.32 = 186,479.46 : x
  2. Step 2: Convert to fraction form
    452,864.22/679,378.32 = 186,479.46/x
  3. Step 3: Cross multiply
    452,864.22x = 679,378.32 × 186,479.46
  4. Step 4: Simplify right side
    452,864.22x = 126,690,102,249.31
  5. Step 5: Solve for x
    x = 126,690,102,249.31/452,864.22
  6. Step 6: Final answer
    x = 279,752.95

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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.