Home / 819,682.20-1,228,211.10-538,871.40

Finding the Fourth Proportional to 819,682.20, 1,228,211.10 and 538,871.40

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Solution

The fourth proportional to 819,682.20, 1,228,211.10 and 538,871.40 is: 807,444.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,682.20 : 1,228,211.10 = 538,871.40 : x
  2. Step 2: Convert to fraction form
    819,682.20/1,228,211.10 = 538,871.40/x
  3. Step 3: Cross multiply
    819,682.20x = 1,228,211.10 × 538,871.40
  4. Step 4: Simplify right side
    819,682.20x = 661,847,834,952.54
  5. Step 5: Solve for x
    x = 661,847,834,952.54/819,682.20
  6. Step 6: Final answer
    x = 807,444.44

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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.