Home / 291,986.88-402,734.44-189,823.92

Finding the Fourth Proportional to 291,986.88, 402,734.44 and 189,823.92

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Solution

The fourth proportional to 291,986.88, 402,734.44 and 189,823.92 is: 261,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,986.88 : 402,734.44 = 189,823.92 : x
  2. Step 2: Convert to fraction form
    291,986.88/402,734.44 = 189,823.92/x
  3. Step 3: Cross multiply
    291,986.88x = 402,734.44 × 189,823.92
  4. Step 4: Simplify right side
    291,986.88x = 76,448,630,119.80
  5. Step 5: Solve for x
    x = 76,448,630,119.80/291,986.88
  6. Step 6: Final answer
    x = 261,822.14

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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.