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Finding the Fourth Proportional to 332,779.20, 498,466.80 and 220,513.20

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Solution

The fourth proportional to 332,779.20, 498,466.80 and 220,513.20 is: 330,304.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,779.20 : 498,466.80 = 220,513.20 : x
  2. Step 2: Convert to fraction form
    332,779.20/498,466.80 = 220,513.20/x
  3. Step 3: Cross multiply
    332,779.20x = 498,466.80 × 220,513.20
  4. Step 4: Simplify right side
    332,779.20x = 109,918,509,161.76
  5. Step 5: Solve for x
    x = 109,918,509,161.76/332,779.20
  6. Step 6: Final answer
    x = 330,304.63

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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.