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Finding the Fourth Proportional to 452,992.80, 679,780.80 and 263,452.80

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Solution

The fourth proportional to 452,992.80, 679,780.80 and 263,452.80 is: 395,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,992.80 : 679,780.80 = 263,452.80 : x
  2. Step 2: Convert to fraction form
    452,992.80/679,780.80 = 263,452.80/x
  3. Step 3: Cross multiply
    452,992.80x = 679,780.80 × 263,452.80
  4. Step 4: Simplify right side
    452,992.80x = 179,090,155,146.24
  5. Step 5: Solve for x
    x = 179,090,155,146.24/452,992.80
  6. Step 6: Final answer
    x = 395,348.79

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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.