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Finding the Fourth Proportional to 331,367.20, 497,180.40 and 121,026.40

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Solution

The fourth proportional to 331,367.20, 497,180.40 and 121,026.40 is: 181,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,367.20 : 497,180.40 = 121,026.40 : x
  2. Step 2: Convert to fraction form
    331,367.20/497,180.40 = 121,026.40/x
  3. Step 3: Cross multiply
    331,367.20x = 497,180.40 × 121,026.40
  4. Step 4: Simplify right side
    331,367.20x = 60,171,953,962.56
  5. Step 5: Solve for x
    x = 60,171,953,962.56/331,367.20
  6. Step 6: Final answer
    x = 181,586.93

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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.