Home / 769,310.10-1,153,965.15-200,690.10

Finding the Fourth Proportional to 769,310.10, 1,153,965.15 and 200,690.10

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Solution

The fourth proportional to 769,310.10, 1,153,965.15 and 200,690.10 is: 301,035.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,310.10 : 1,153,965.15 = 200,690.10 : x
  2. Step 2: Convert to fraction form
    769,310.10/1,153,965.15 = 200,690.10/x
  3. Step 3: Cross multiply
    769,310.10x = 1,153,965.15 × 200,690.10
  4. Step 4: Simplify right side
    769,310.10x = 231,589,381,350.02
  5. Step 5: Solve for x
    x = 231,589,381,350.02/769,310.10
  6. Step 6: Final answer
    x = 301,035.15

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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.