Home / 769,998.40-1,153,685.40-657,149.20

Finding the Fourth Proportional to 769,998.40, 1,153,685.40 and 657,149.20

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Solution

The fourth proportional to 769,998.40, 1,153,685.40 and 657,149.20 is: 984,603.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,998.40 : 1,153,685.40 = 657,149.20 : x
  2. Step 2: Convert to fraction form
    769,998.40/1,153,685.40 = 657,149.20/x
  3. Step 3: Cross multiply
    769,998.40x = 1,153,685.40 × 657,149.20
  4. Step 4: Simplify right side
    769,998.40x = 758,143,437,661.68
  5. Step 5: Solve for x
    x = 758,143,437,661.68/769,998.40
  6. Step 6: Final answer
    x = 984,603.91

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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.