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Finding the Fourth Proportional to 332,242.40, 498,363.60 and 243,012.80

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Solution

The fourth proportional to 332,242.40, 498,363.60 and 243,012.80 is: 364,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,242.40 : 498,363.60 = 243,012.80 : x
  2. Step 2: Convert to fraction form
    332,242.40/498,363.60 = 243,012.80/x
  3. Step 3: Cross multiply
    332,242.40x = 498,363.60 × 243,012.80
  4. Step 4: Simplify right side
    332,242.40x = 121,108,733,854.08
  5. Step 5: Solve for x
    x = 121,108,733,854.08/332,242.40
  6. Step 6: Final answer
    x = 364,519.20

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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.