Home / 1,143,257.28-1,715,550.12-512,171.10

Finding the Fourth Proportional to 1,143,257.28, 1,715,550.12 and 512,171.10

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Solution

The fourth proportional to 1,143,257.28, 1,715,550.12 and 512,171.10 is: 768,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,257.28 : 1,715,550.12 = 512,171.10 : x
  2. Step 2: Convert to fraction form
    1,143,257.28/1,715,550.12 = 512,171.10/x
  3. Step 3: Cross multiply
    1,143,257.28x = 1,715,550.12 × 512,171.10
  4. Step 4: Simplify right side
    1,143,257.28x = 878,655,192,065.53
  5. Step 5: Solve for x
    x = 878,655,192,065.53/1,143,257.28
  6. Step 6: Final answer
    x = 768,554.21

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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.