Home / 938,760.08-1,408,258.20-459,003.92

Finding the Fourth Proportional to 938,760.08, 1,408,258.20 and 459,003.92

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Solution

The fourth proportional to 938,760.08, 1,408,258.20 and 459,003.92 is: 688,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,760.08 : 1,408,258.20 = 459,003.92 : x
  2. Step 2: Convert to fraction form
    938,760.08/1,408,258.20 = 459,003.92/x
  3. Step 3: Cross multiply
    938,760.08x = 1,408,258.20 × 459,003.92
  4. Step 4: Simplify right side
    938,760.08x = 646,396,034,172.14
  5. Step 5: Solve for x
    x = 646,396,034,172.14/938,760.08
  6. Step 6: Final answer
    x = 688,563.61

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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.