Home / 862,938.80-1,294,408.20-485,025.20

Finding the Fourth Proportional to 862,938.80, 1,294,408.20 and 485,025.20

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Solution

The fourth proportional to 862,938.80, 1,294,408.20 and 485,025.20 is: 727,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,938.80 : 1,294,408.20 = 485,025.20 : x
  2. Step 2: Convert to fraction form
    862,938.80/1,294,408.20 = 485,025.20/x
  3. Step 3: Cross multiply
    862,938.80x = 1,294,408.20 × 485,025.20
  4. Step 4: Simplify right side
    862,938.80x = 627,820,596,086.64
  5. Step 5: Solve for x
    x = 627,820,596,086.64/862,938.80
  6. Step 6: Final answer
    x = 727,537.80

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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.