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Finding the Fourth Proportional to 484,886.60, 727,329.90 and 274,934.60

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Solution

The fourth proportional to 484,886.60, 727,329.90 and 274,934.60 is: 412,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,886.60 : 727,329.90 = 274,934.60 : x
  2. Step 2: Convert to fraction form
    484,886.60/727,329.90 = 274,934.60/x
  3. Step 3: Cross multiply
    484,886.60x = 727,329.90 × 274,934.60
  4. Step 4: Simplify right side
    484,886.60x = 199,968,155,124.54
  5. Step 5: Solve for x
    x = 199,968,155,124.54/484,886.60
  6. Step 6: Final answer
    x = 412,401.90

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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.