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Finding the Fourth Proportional to 322,974.80, 484,462.20 and 240,030.80

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Solution

The fourth proportional to 322,974.80, 484,462.20 and 240,030.80 is: 360,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,974.80 : 484,462.20 = 240,030.80 : x
  2. Step 2: Convert to fraction form
    322,974.80/484,462.20 = 240,030.80/x
  3. Step 3: Cross multiply
    322,974.80x = 484,462.20 × 240,030.80
  4. Step 4: Simplify right side
    322,974.80x = 116,285,849,435.76
  5. Step 5: Solve for x
    x = 116,285,849,435.76/322,974.80
  6. Step 6: Final answer
    x = 360,046.20

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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.