Home / 865,813.70-1,194,819.42-483,840.38

Finding the Fourth Proportional to 865,813.70, 1,194,819.42 and 483,840.38

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Solution

The fourth proportional to 865,813.70, 1,194,819.42 and 483,840.38 is: 667,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,813.70 : 1,194,819.42 = 483,840.38 : x
  2. Step 2: Convert to fraction form
    865,813.70/1,194,819.42 = 483,840.38/x
  3. Step 3: Cross multiply
    865,813.70x = 1,194,819.42 × 483,840.38
  4. Step 4: Simplify right side
    865,813.70x = 578,101,882,204.18
  5. Step 5: Solve for x
    x = 578,101,882,204.18/865,813.70
  6. Step 6: Final answer
    x = 667,697.78

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Double scale
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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.