Home / 819,257.60-1,228,886.40-752,902.40

Finding the Fourth Proportional to 819,257.60, 1,228,886.40 and 752,902.40

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Solution

The fourth proportional to 819,257.60, 1,228,886.40 and 752,902.40 is: 1,129,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,257.60 : 1,228,886.40 = 752,902.40 : x
  2. Step 2: Convert to fraction form
    819,257.60/1,228,886.40 = 752,902.40/x
  3. Step 3: Cross multiply
    819,257.60x = 1,228,886.40 × 752,902.40
  4. Step 4: Simplify right side
    819,257.60x = 925,231,519,887.36
  5. Step 5: Solve for x
    x = 925,231,519,887.36/819,257.60
  6. Step 6: Final answer
    x = 1,129,353.60

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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.