Home / 263,402.92-395,005.02-85,868.20

Finding the Fourth Proportional to 263,402.92, 395,005.02 and 85,868.20

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Solution

The fourth proportional to 263,402.92, 395,005.02 and 85,868.20 is: 128,769.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,402.92 : 395,005.02 = 85,868.20 : x
  2. Step 2: Convert to fraction form
    263,402.92/395,005.02 = 85,868.20/x
  3. Step 3: Cross multiply
    263,402.92x = 395,005.02 × 85,868.20
  4. Step 4: Simplify right side
    263,402.92x = 33,918,370,058.36
  5. Step 5: Solve for x
    x = 33,918,370,058.36/263,402.92
  6. Step 6: Final answer
    x = 128,769.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.