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Finding the Fourth Proportional to 826,203, 1,238,141.49 and 656,972.28

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Solution

The fourth proportional to 826,203, 1,238,141.49 and 656,972.28 is: 984,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,203 : 1,238,141.49 = 656,972.28 : x
  2. Step 2: Convert to fraction form
    826,203/1,238,141.49 = 656,972.28/x
  3. Step 3: Cross multiply
    826,203x = 1,238,141.49 × 656,972.28
  4. Step 4: Simplify right side
    826,203x = 813,424,637,647.90
  5. Step 5: Solve for x
    x = 813,424,637,647.90/826,203
  6. Step 6: Final answer
    x = 984,533.63

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Double scale
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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.