Home / 521,839.80-782,759.70-166,865.40

Finding the Fourth Proportional to 521,839.80, 782,759.70 and 166,865.40

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Solution

The fourth proportional to 521,839.80, 782,759.70 and 166,865.40 is: 250,298.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,839.80 : 782,759.70 = 166,865.40 : x
  2. Step 2: Convert to fraction form
    521,839.80/782,759.70 = 166,865.40/x
  3. Step 3: Cross multiply
    521,839.80x = 782,759.70 × 166,865.40
  4. Step 4: Simplify right side
    521,839.80x = 130,615,510,444.38
  5. Step 5: Solve for x
    x = 130,615,510,444.38/521,839.80
  6. Step 6: Final answer
    x = 250,298.10

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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.