Home / 716,115.45-988,249.11-410,191.66

Finding the Fourth Proportional to 716,115.45, 988,249.11 and 410,191.66

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Solution

The fourth proportional to 716,115.45, 988,249.11 and 410,191.66 is: 566,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,115.45 : 988,249.11 = 410,191.66 : x
  2. Step 2: Convert to fraction form
    716,115.45/988,249.11 = 410,191.66/x
  3. Step 3: Cross multiply
    716,115.45x = 988,249.11 × 410,191.66
  4. Step 4: Simplify right side
    716,115.45x = 405,371,542,924.42
  5. Step 5: Solve for x
    x = 405,371,542,924.42/716,115.45
  6. Step 6: Final answer
    x = 566,070.10

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.