Home / 662,654.20-993,981.30-219,422.20

Finding the Fourth Proportional to 662,654.20, 993,981.30 and 219,422.20

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Solution

The fourth proportional to 662,654.20, 993,981.30 and 219,422.20 is: 329,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,654.20 : 993,981.30 = 219,422.20 : x
  2. Step 2: Convert to fraction form
    662,654.20/993,981.30 = 219,422.20/x
  3. Step 3: Cross multiply
    662,654.20x = 993,981.30 × 219,422.20
  4. Step 4: Simplify right side
    662,654.20x = 218,101,563,604.86
  5. Step 5: Solve for x
    x = 218,101,563,604.86/662,654.20
  6. Step 6: Final answer
    x = 329,133.30

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Double scale
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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.