Home / 971,118.75-1,340,128.49-541,425.09

Finding the Fourth Proportional to 971,118.75, 1,340,128.49 and 541,425.09

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Solution

The fourth proportional to 971,118.75, 1,340,128.49 and 541,425.09 is: 747,158.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,118.75 : 1,340,128.49 = 541,425.09 : x
  2. Step 2: Convert to fraction form
    971,118.75/1,340,128.49 = 541,425.09/x
  3. Step 3: Cross multiply
    971,118.75x = 1,340,128.49 × 541,425.09
  4. Step 4: Simplify right side
    971,118.75x = 725,579,185,602.69
  5. Step 5: Solve for x
    x = 725,579,185,602.69/971,118.75
  6. Step 6: Final answer
    x = 747,158.04

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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.