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Finding the Fourth Proportional to 332,078.80, 498,118.20 and 304,085.20

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Solution

The fourth proportional to 332,078.80, 498,118.20 and 304,085.20 is: 456,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,078.80 : 498,118.20 = 304,085.20 : x
  2. Step 2: Convert to fraction form
    332,078.80/498,118.20 = 304,085.20/x
  3. Step 3: Cross multiply
    332,078.80x = 498,118.20 × 304,085.20
  4. Step 4: Simplify right side
    332,078.80x = 151,470,372,470.64
  5. Step 5: Solve for x
    x = 151,470,372,470.64/332,078.80
  6. Step 6: Final answer
    x = 456,127.80

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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.