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Finding the Fourth Proportional to 288,830.60, 433,245.90 and 194,352.20

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Solution

The fourth proportional to 288,830.60, 433,245.90 and 194,352.20 is: 291,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,830.60 : 433,245.90 = 194,352.20 : x
  2. Step 2: Convert to fraction form
    288,830.60/433,245.90 = 194,352.20/x
  3. Step 3: Cross multiply
    288,830.60x = 433,245.90 × 194,352.20
  4. Step 4: Simplify right side
    288,830.60x = 84,202,293,805.98
  5. Step 5: Solve for x
    x = 84,202,293,805.98/288,830.60
  6. Step 6: Final answer
    x = 291,528.30

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Similar ratio
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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.