Home / 286,693.48-395,589.18-159,351.76

Finding the Fourth Proportional to 286,693.48, 395,589.18 and 159,351.76

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Solution

The fourth proportional to 286,693.48, 395,589.18 and 159,351.76 is: 219,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,693.48 : 395,589.18 = 159,351.76 : x
  2. Step 2: Convert to fraction form
    286,693.48/395,589.18 = 159,351.76/x
  3. Step 3: Cross multiply
    286,693.48x = 395,589.18 × 159,351.76
  4. Step 4: Simplify right side
    286,693.48x = 63,037,832,069.96
  5. Step 5: Solve for x
    x = 63,037,832,069.96/286,693.48
  6. Step 6: Final answer
    x = 219,878.85

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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.