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Finding the Fourth Proportional to 363,719.80, 545,579.70 and 222,002.20

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Solution

The fourth proportional to 363,719.80, 545,579.70 and 222,002.20 is: 333,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,719.80 : 545,579.70 = 222,002.20 : x
  2. Step 2: Convert to fraction form
    363,719.80/545,579.70 = 222,002.20/x
  3. Step 3: Cross multiply
    363,719.80x = 545,579.70 × 222,002.20
  4. Step 4: Simplify right side
    363,719.80x = 121,119,893,675.34
  5. Step 5: Solve for x
    x = 121,119,893,675.34/363,719.80
  6. Step 6: Final answer
    x = 333,003.30

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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.