Home / 1,299,150.43-1,948,600.19-400,350.84

Finding the Fourth Proportional to 1,299,150.43, 1,948,600.19 and 400,350.84

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Solution

The fourth proportional to 1,299,150.43, 1,948,600.19 and 400,350.84 is: 600,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,150.43 : 1,948,600.19 = 400,350.84 : x
  2. Step 2: Convert to fraction form
    1,299,150.43/1,948,600.19 = 400,350.84/x
  3. Step 3: Cross multiply
    1,299,150.43x = 1,948,600.19 × 400,350.84
  4. Step 4: Simplify right side
    1,299,150.43x = 780,123,716,584.29
  5. Step 5: Solve for x
    x = 780,123,716,584.29/1,299,150.43
  6. Step 6: Final answer
    x = 600,487.60

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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.