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Finding the Fourth Proportional to 484,668.10, 727,117.35 and 204,040.90

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Solution

The fourth proportional to 484,668.10, 727,117.35 and 204,040.90 is: 306,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,668.10 : 727,117.35 = 204,040.90 : x
  2. Step 2: Convert to fraction form
    484,668.10/727,117.35 = 204,040.90/x
  3. Step 3: Cross multiply
    484,668.10x = 727,117.35 × 204,040.90
  4. Step 4: Simplify right side
    484,668.10x = 148,361,678,499.62
  5. Step 5: Solve for x
    x = 148,361,678,499.62/484,668.10
  6. Step 6: Final answer
    x = 306,109.85

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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.