Home / 813,897.60-1,220,846.40-656,433.60

Finding the Fourth Proportional to 813,897.60, 1,220,846.40 and 656,433.60

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Solution

The fourth proportional to 813,897.60, 1,220,846.40 and 656,433.60 is: 984,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,897.60 : 1,220,846.40 = 656,433.60 : x
  2. Step 2: Convert to fraction form
    813,897.60/1,220,846.40 = 656,433.60/x
  3. Step 3: Cross multiply
    813,897.60x = 1,220,846.40 × 656,433.60
  4. Step 4: Simplify right side
    813,897.60x = 801,404,597,399.04
  5. Step 5: Solve for x
    x = 801,404,597,399.04/813,897.60
  6. Step 6: Final answer
    x = 984,650.40

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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.