Home / 286,621.76-395,554.40-159,305.42

Finding the Fourth Proportional to 286,621.76, 395,554.40 and 159,305.42

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Solution

The fourth proportional to 286,621.76, 395,554.40 and 159,305.42 is: 219,850.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,621.76 : 395,554.40 = 159,305.42 : x
  2. Step 2: Convert to fraction form
    286,621.76/395,554.40 = 159,305.42/x
  3. Step 3: Cross multiply
    286,621.76x = 395,554.40 × 159,305.42
  4. Step 4: Simplify right side
    286,621.76x = 63,013,959,824.85
  5. Step 5: Solve for x
    x = 63,013,959,824.85/286,621.76
  6. Step 6: Final answer
    x = 219,850.58

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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.