Home / 725,099.40-1,087,649.10-694,384.20

Finding the Fourth Proportional to 725,099.40, 1,087,649.10 and 694,384.20

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Solution

The fourth proportional to 725,099.40, 1,087,649.10 and 694,384.20 is: 1,041,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,099.40 : 1,087,649.10 = 694,384.20 : x
  2. Step 2: Convert to fraction form
    725,099.40/1,087,649.10 = 694,384.20/x
  3. Step 3: Cross multiply
    725,099.40x = 1,087,649.10 × 694,384.20
  4. Step 4: Simplify right side
    725,099.40x = 755,246,350,184.22
  5. Step 5: Solve for x
    x = 755,246,350,184.22/725,099.40
  6. Step 6: Final answer
    x = 1,041,576.30

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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.