Home / 822,720.20-1,234,080.30-656,832.20

Finding the Fourth Proportional to 822,720.20, 1,234,080.30 and 656,832.20

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Solution

The fourth proportional to 822,720.20, 1,234,080.30 and 656,832.20 is: 985,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,720.20 : 1,234,080.30 = 656,832.20 : x
  2. Step 2: Convert to fraction form
    822,720.20/1,234,080.30 = 656,832.20/x
  3. Step 3: Cross multiply
    822,720.20x = 1,234,080.30 × 656,832.20
  4. Step 4: Simplify right side
    822,720.20x = 810,583,678,425.66
  5. Step 5: Solve for x
    x = 810,583,678,425.66/822,720.20
  6. Step 6: Final answer
    x = 985,248.30

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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.