Home / 828,517.12-1,143,398.85-465,962.41

Finding the Fourth Proportional to 828,517.12, 1,143,398.85 and 465,962.41

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Solution

The fourth proportional to 828,517.12, 1,143,398.85 and 465,962.41 is: 643,053.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,517.12 : 1,143,398.85 = 465,962.41 : x
  2. Step 2: Convert to fraction form
    828,517.12/1,143,398.85 = 465,962.41/x
  3. Step 3: Cross multiply
    828,517.12x = 1,143,398.85 × 465,962.41
  4. Step 4: Simplify right side
    828,517.12x = 532,780,885,415.15
  5. Step 5: Solve for x
    x = 532,780,885,415.15/828,517.12
  6. Step 6: Final answer
    x = 643,053.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.