Home / 823,715.70-1,234,261.35-611,139.30

Finding the Fourth Proportional to 823,715.70, 1,234,261.35 and 611,139.30

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Solution

The fourth proportional to 823,715.70, 1,234,261.35 and 611,139.30 is: 915,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,715.70 : 1,234,261.35 = 611,139.30 : x
  2. Step 2: Convert to fraction form
    823,715.70/1,234,261.35 = 611,139.30/x
  3. Step 3: Cross multiply
    823,715.70x = 1,234,261.35 × 611,139.30
  4. Step 4: Simplify right side
    823,715.70x = 754,305,617,456.06
  5. Step 5: Solve for x
    x = 754,305,617,456.06/823,715.70
  6. Step 6: Final answer
    x = 915,735.39

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Double scale
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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.