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Finding the Fourth Proportional to 332,443.20, 498,664.80 and 155,296.20

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Solution

The fourth proportional to 332,443.20, 498,664.80 and 155,296.20 is: 232,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,443.20 : 498,664.80 = 155,296.20 : x
  2. Step 2: Convert to fraction form
    332,443.20/498,664.80 = 155,296.20/x
  3. Step 3: Cross multiply
    332,443.20x = 498,664.80 × 155,296.20
  4. Step 4: Simplify right side
    332,443.20x = 77,440,748,513.76
  5. Step 5: Solve for x
    x = 77,440,748,513.76/332,443.20
  6. Step 6: Final answer
    x = 232,944.30

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Similar ratio
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1.5x scale

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.