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Finding the Fourth Proportional to 332,209.80, 498,314.70 and 121,820.40

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Solution

The fourth proportional to 332,209.80, 498,314.70 and 121,820.40 is: 182,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,209.80 : 498,314.70 = 121,820.40 : x
  2. Step 2: Convert to fraction form
    332,209.80/498,314.70 = 121,820.40/x
  3. Step 3: Cross multiply
    332,209.80x = 498,314.70 × 121,820.40
  4. Step 4: Simplify right side
    332,209.80x = 60,704,896,079.88
  5. Step 5: Solve for x
    x = 60,704,896,079.88/332,209.80
  6. Step 6: Final answer
    x = 182,730.60

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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.