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Finding the Fourth Proportional to 544,562.20, 816,648.90 and 189,587.80

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Solution

The fourth proportional to 544,562.20, 816,648.90 and 189,587.80 is: 284,314.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,562.20 : 816,648.90 = 189,587.80 : x
  2. Step 2: Convert to fraction form
    544,562.20/816,648.90 = 189,587.80/x
  3. Step 3: Cross multiply
    544,562.20x = 816,648.90 × 189,587.80
  4. Step 4: Simplify right side
    544,562.20x = 154,826,668,323.42
  5. Step 5: Solve for x
    x = 154,826,668,323.42/544,562.20
  6. Step 6: Final answer
    x = 284,314.02

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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.