Home / 263,388.76-395,146.02-85,895.92

Finding the Fourth Proportional to 263,388.76, 395,146.02 and 85,895.92

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Solution

The fourth proportional to 263,388.76, 395,146.02 and 85,895.92 is: 128,864.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,388.76 : 395,146.02 = 85,895.92 : x
  2. Step 2: Convert to fraction form
    263,388.76/395,146.02 = 85,895.92/x
  3. Step 3: Cross multiply
    263,388.76x = 395,146.02 × 85,895.92
  4. Step 4: Simplify right side
    263,388.76x = 33,941,430,922.24
  5. Step 5: Solve for x
    x = 33,941,430,922.24/263,388.76
  6. Step 6: Final answer
    x = 128,864.39

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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.