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Finding the Fourth Proportional to 332,339.20, 498,508.80 and 310,031.80

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Solution

The fourth proportional to 332,339.20, 498,508.80 and 310,031.80 is: 465,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,339.20 : 498,508.80 = 310,031.80 : x
  2. Step 2: Convert to fraction form
    332,339.20/498,508.80 = 310,031.80/x
  3. Step 3: Cross multiply
    332,339.20x = 498,508.80 × 310,031.80
  4. Step 4: Simplify right side
    332,339.20x = 154,553,580,579.84
  5. Step 5: Solve for x
    x = 154,553,580,579.84/332,339.20
  6. Step 6: Final answer
    x = 465,047.70

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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.