Home / 1,761,665.20-2,641,331.40-639,588.40

Finding the Fourth Proportional to 1,761,665.20, 2,641,331.40 and 639,588.40

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Solution

The fourth proportional to 1,761,665.20, 2,641,331.40 and 639,588.40 is: 958,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,665.20 : 2,641,331.40 = 639,588.40 : x
  2. Step 2: Convert to fraction form
    1,761,665.20/2,641,331.40 = 639,588.40/x
  3. Step 3: Cross multiply
    1,761,665.20x = 2,641,331.40 × 639,588.40
  4. Step 4: Simplify right side
    1,761,665.20x = 1,689,364,923,995.76
  5. Step 5: Solve for x
    x = 1,689,364,923,995.76/1,761,665.20
  6. Step 6: Final answer
    x = 958,959.13

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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.