Home / 463,111.28-639,120.50-259,160.44

Finding the Fourth Proportional to 463,111.28, 639,120.50 and 259,160.44

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Solution

The fourth proportional to 463,111.28, 639,120.50 and 259,160.44 is: 357,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,111.28 : 639,120.50 = 259,160.44 : x
  2. Step 2: Convert to fraction form
    463,111.28/639,120.50 = 259,160.44/x
  3. Step 3: Cross multiply
    463,111.28x = 639,120.50 × 259,160.44
  4. Step 4: Simplify right side
    463,111.28x = 165,634,749,993.02
  5. Step 5: Solve for x
    x = 165,634,749,993.02/463,111.28
  6. Step 6: Final answer
    x = 357,656.48

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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.