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Finding the Fourth Proportional to 263,326.68, 395,030.97 and 85,792.32

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Solution

The fourth proportional to 263,326.68, 395,030.97 and 85,792.32 is: 128,701.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,326.68 : 395,030.97 = 85,792.32 : x
  2. Step 2: Convert to fraction form
    263,326.68/395,030.97 = 85,792.32/x
  3. Step 3: Cross multiply
    263,326.68x = 395,030.97 × 85,792.32
  4. Step 4: Simplify right side
    263,326.68x = 33,890,623,388.15
  5. Step 5: Solve for x
    x = 33,890,623,388.15/263,326.68
  6. Step 6: Final answer
    x = 128,701.82

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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.