Home / 286,624.74-395,539.26-159,297.78

Finding the Fourth Proportional to 286,624.74, 395,539.26 and 159,297.78

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Solution

The fourth proportional to 286,624.74, 395,539.26 and 159,297.78 is: 219,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,624.74 : 395,539.26 = 159,297.78 : x
  2. Step 2: Convert to fraction form
    286,624.74/395,539.26 = 159,297.78/x
  3. Step 3: Cross multiply
    286,624.74x = 395,539.26 × 159,297.78
  4. Step 4: Simplify right side
    286,624.74x = 63,008,526,020.84
  5. Step 5: Solve for x
    x = 63,008,526,020.84/286,624.74
  6. Step 6: Final answer
    x = 219,829.34

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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.