Home / 811,169.10-1,216,884.87-337,902.30

Finding the Fourth Proportional to 811,169.10, 1,216,884.87 and 337,902.30

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Solution

The fourth proportional to 811,169.10, 1,216,884.87 and 337,902.30 is: 506,908.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,169.10 : 1,216,884.87 = 337,902.30 : x
  2. Step 2: Convert to fraction form
    811,169.10/1,216,884.87 = 337,902.30/x
  3. Step 3: Cross multiply
    811,169.10x = 1,216,884.87 × 337,902.30
  4. Step 4: Simplify right side
    811,169.10x = 411,188,196,408.20
  5. Step 5: Solve for x
    x = 411,188,196,408.20/811,169.10
  6. Step 6: Final answer
    x = 506,908.11

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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.