Home / 515,824.20-773,736.30-397,726.20

Finding the Fourth Proportional to 515,824.20, 773,736.30 and 397,726.20

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Solution

The fourth proportional to 515,824.20, 773,736.30 and 397,726.20 is: 596,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,824.20 : 773,736.30 = 397,726.20 : x
  2. Step 2: Convert to fraction form
    515,824.20/773,736.30 = 397,726.20/x
  3. Step 3: Cross multiply
    515,824.20x = 773,736.30 × 397,726.20
  4. Step 4: Simplify right side
    515,824.20x = 307,735,198,401.06
  5. Step 5: Solve for x
    x = 307,735,198,401.06/515,824.20
  6. Step 6: Final answer
    x = 596,589.30

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Half scale
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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.