Home / 819,132.05-1,229,251.40-286,657.70

Finding the Fourth Proportional to 819,132.05, 1,229,251.40 and 286,657.70

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Solution

The fourth proportional to 819,132.05, 1,229,251.40 and 286,657.70 is: 430,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,132.05 : 1,229,251.40 = 286,657.70 : x
  2. Step 2: Convert to fraction form
    819,132.05/1,229,251.40 = 286,657.70/x
  3. Step 3: Cross multiply
    819,132.05x = 1,229,251.40 × 286,657.70
  4. Step 4: Simplify right side
    819,132.05x = 352,374,373,616.17
  5. Step 5: Solve for x
    x = 352,374,373,616.17/819,132.05
  6. Step 6: Final answer
    x = 430,180.18

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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.