Home / 891,036.80-1,336,555.20-536,451.20

Finding the Fourth Proportional to 891,036.80, 1,336,555.20 and 536,451.20

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Solution

The fourth proportional to 891,036.80, 1,336,555.20 and 536,451.20 is: 804,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,036.80 : 1,336,555.20 = 536,451.20 : x
  2. Step 2: Convert to fraction form
    891,036.80/1,336,555.20 = 536,451.20/x
  3. Step 3: Cross multiply
    891,036.80x = 1,336,555.20 × 536,451.20
  4. Step 4: Simplify right side
    891,036.80x = 716,996,640,906.24
  5. Step 5: Solve for x
    x = 716,996,640,906.24/891,036.80
  6. Step 6: Final answer
    x = 804,676.80

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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.