Home / 831,805.70-1,247,708.55-453,892.10

Finding the Fourth Proportional to 831,805.70, 1,247,708.55 and 453,892.10

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Solution

The fourth proportional to 831,805.70, 1,247,708.55 and 453,892.10 is: 680,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,805.70 : 1,247,708.55 = 453,892.10 : x
  2. Step 2: Convert to fraction form
    831,805.70/1,247,708.55 = 453,892.10/x
  3. Step 3: Cross multiply
    831,805.70x = 1,247,708.55 × 453,892.10
  4. Step 4: Simplify right side
    831,805.70x = 566,325,053,947.46
  5. Step 5: Solve for x
    x = 566,325,053,947.46/831,805.70
  6. Step 6: Final answer
    x = 680,838.15

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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.