Home / 826,917.40-1,240,721.70-266,123.80

Finding the Fourth Proportional to 826,917.40, 1,240,721.70 and 266,123.80

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Solution

The fourth proportional to 826,917.40, 1,240,721.70 and 266,123.80 is: 399,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,917.40 : 1,240,721.70 = 266,123.80 : x
  2. Step 2: Convert to fraction form
    826,917.40/1,240,721.70 = 266,123.80/x
  3. Step 3: Cross multiply
    826,917.40x = 1,240,721.70 × 266,123.80
  4. Step 4: Simplify right side
    826,917.40x = 330,185,573,546.46
  5. Step 5: Solve for x
    x = 330,185,573,546.46/826,917.40
  6. Step 6: Final answer
    x = 399,296.92

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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.