Home / 661,312.56-991,819.80-187,987.44

Finding the Fourth Proportional to 661,312.56, 991,819.80 and 187,987.44

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Solution

The fourth proportional to 661,312.56, 991,819.80 and 187,987.44 is: 281,938.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,312.56 : 991,819.80 = 187,987.44 : x
  2. Step 2: Convert to fraction form
    661,312.56/991,819.80 = 187,987.44/x
  3. Step 3: Cross multiply
    661,312.56x = 991,819.80 × 187,987.44
  4. Step 4: Simplify right side
    661,312.56x = 186,449,665,143.31
  5. Step 5: Solve for x
    x = 186,449,665,143.31/661,312.56
  6. Step 6: Final answer
    x = 281,938.79

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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.