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Finding the Fourth Proportional to 263,502.95, 395,265.35 and 76,514.45

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Solution

The fourth proportional to 263,502.95, 395,265.35 and 76,514.45 is: 114,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,502.95 : 395,265.35 = 76,514.45 : x
  2. Step 2: Convert to fraction form
    263,502.95/395,265.35 = 76,514.45/x
  3. Step 3: Cross multiply
    263,502.95x = 395,265.35 × 76,514.45
  4. Step 4: Simplify right side
    263,502.95x = 30,243,508,500.41
  5. Step 5: Solve for x
    x = 30,243,508,500.41/263,502.95
  6. Step 6: Final answer
    x = 114,774.84

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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.