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Finding the Fourth Proportional to 332,645.70, 498,859.20 and 122,256.30

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Solution

The fourth proportional to 332,645.70, 498,859.20 and 122,256.30 is: 183,344.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,645.70 : 498,859.20 = 122,256.30 : x
  2. Step 2: Convert to fraction form
    332,645.70/498,859.20 = 122,256.30/x
  3. Step 3: Cross multiply
    332,645.70x = 498,859.20 × 122,256.30
  4. Step 4: Simplify right side
    332,645.70x = 60,988,680,012.96
  5. Step 5: Solve for x
    x = 60,988,680,012.96/332,645.70
  6. Step 6: Final answer
    x = 183,344.26

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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.