Home / 819,244.20-1,229,419.53-286,769.64

Finding the Fourth Proportional to 819,244.20, 1,229,419.53 and 286,769.64

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Solution

The fourth proportional to 819,244.20, 1,229,419.53 and 286,769.64 is: 430,348.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,244.20 : 1,229,419.53 = 286,769.64 : x
  2. Step 2: Convert to fraction form
    819,244.20/1,229,419.53 = 286,769.64/x
  3. Step 3: Cross multiply
    819,244.20x = 1,229,419.53 × 286,769.64
  4. Step 4: Simplify right side
    819,244.20x = 352,560,196,027.07
  5. Step 5: Solve for x
    x = 352,560,196,027.07/819,244.20
  6. Step 6: Final answer
    x = 430,348.11

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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.