Home / 692,757.40-1,039,136.10-654,266.20

Finding the Fourth Proportional to 692,757.40, 1,039,136.10 and 654,266.20

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Solution

The fourth proportional to 692,757.40, 1,039,136.10 and 654,266.20 is: 981,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,757.40 : 1,039,136.10 = 654,266.20 : x
  2. Step 2: Convert to fraction form
    692,757.40/1,039,136.10 = 654,266.20/x
  3. Step 3: Cross multiply
    692,757.40x = 1,039,136.10 × 654,266.20
  4. Step 4: Simplify right side
    692,757.40x = 679,871,627,429.82
  5. Step 5: Solve for x
    x = 679,871,627,429.82/692,757.40
  6. Step 6: Final answer
    x = 981,399.30

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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.