Home / 259,723.20-389,584.80-166,411.20

Finding the Fourth Proportional to 259,723.20, 389,584.80 and 166,411.20

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Solution

The fourth proportional to 259,723.20, 389,584.80 and 166,411.20 is: 249,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,723.20 : 389,584.80 = 166,411.20 : x
  2. Step 2: Convert to fraction form
    259,723.20/389,584.80 = 166,411.20/x
  3. Step 3: Cross multiply
    259,723.20x = 389,584.80 × 166,411.20
  4. Step 4: Simplify right side
    259,723.20x = 64,831,274,069.76
  5. Step 5: Solve for x
    x = 64,831,274,069.76/259,723.20
  6. Step 6: Final answer
    x = 249,616.80

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Similar ratio
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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.