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Finding the Fourth Proportional to 619,229.20, 928,843.80 and 198,547.60

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Solution

The fourth proportional to 619,229.20, 928,843.80 and 198,547.60 is: 297,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,229.20 : 928,843.80 = 198,547.60 : x
  2. Step 2: Convert to fraction form
    619,229.20/928,843.80 = 198,547.60/x
  3. Step 3: Cross multiply
    619,229.20x = 928,843.80 × 198,547.60
  4. Step 4: Simplify right side
    619,229.20x = 184,419,707,264.88
  5. Step 5: Solve for x
    x = 184,419,707,264.88/619,229.20
  6. Step 6: Final answer
    x = 297,821.40

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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.