Home / 824,279.70-1,236,419.55-611,703.30

Finding the Fourth Proportional to 824,279.70, 1,236,419.55 and 611,703.30

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Solution

The fourth proportional to 824,279.70, 1,236,419.55 and 611,703.30 is: 917,554.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,279.70 : 1,236,419.55 = 611,703.30 : x
  2. Step 2: Convert to fraction form
    824,279.70/1,236,419.55 = 611,703.30/x
  3. Step 3: Cross multiply
    824,279.70x = 1,236,419.55 × 611,703.30
  4. Step 4: Simplify right side
    824,279.70x = 756,321,918,919.52
  5. Step 5: Solve for x
    x = 756,321,918,919.52/824,279.70
  6. Step 6: Final answer
    x = 917,554.95

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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.