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Finding the Fourth Proportional to 218,577.80, 327,866.70 and 194,958.20

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Solution

The fourth proportional to 218,577.80, 327,866.70 and 194,958.20 is: 292,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,577.80 : 327,866.70 = 194,958.20 : x
  2. Step 2: Convert to fraction form
    218,577.80/327,866.70 = 194,958.20/x
  3. Step 3: Cross multiply
    218,577.80x = 327,866.70 × 194,958.20
  4. Step 4: Simplify right side
    218,577.80x = 63,920,301,671.94
  5. Step 5: Solve for x
    x = 63,920,301,671.94/218,577.80
  6. Step 6: Final answer
    x = 292,437.30

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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.