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Finding the Fourth Proportional to 618,616.60, 927,470.82 and 197,649.88

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Solution

The fourth proportional to 618,616.60, 927,470.82 and 197,649.88 is: 296,329.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,616.60 : 927,470.82 = 197,649.88 : x
  2. Step 2: Convert to fraction form
    618,616.60/927,470.82 = 197,649.88/x
  3. Step 3: Cross multiply
    618,616.60x = 927,470.82 × 197,649.88
  4. Step 4: Simplify right side
    618,616.60x = 183,314,496,276.50
  5. Step 5: Solve for x
    x = 183,314,496,276.50/618,616.60
  6. Step 6: Final answer
    x = 296,329.74

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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.