Home / 891,027.20-1,336,540.80-393,363.20

Finding the Fourth Proportional to 891,027.20, 1,336,540.80 and 393,363.20

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Solution

The fourth proportional to 891,027.20, 1,336,540.80 and 393,363.20 is: 590,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,027.20 : 1,336,540.80 = 393,363.20 : x
  2. Step 2: Convert to fraction form
    891,027.20/1,336,540.80 = 393,363.20/x
  3. Step 3: Cross multiply
    891,027.20x = 1,336,540.80 × 393,363.20
  4. Step 4: Simplify right side
    891,027.20x = 525,745,966,018.56
  5. Step 5: Solve for x
    x = 525,745,966,018.56/891,027.20
  6. Step 6: Final answer
    x = 590,044.80

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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.