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Finding the Fourth Proportional to 295,994.80, 443,992.20 and 129,782.80

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Solution

The fourth proportional to 295,994.80, 443,992.20 and 129,782.80 is: 194,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,994.80 : 443,992.20 = 129,782.80 : x
  2. Step 2: Convert to fraction form
    295,994.80/443,992.20 = 129,782.80/x
  3. Step 3: Cross multiply
    295,994.80x = 443,992.20 × 129,782.80
  4. Step 4: Simplify right side
    295,994.80x = 57,622,550,894.16
  5. Step 5: Solve for x
    x = 57,622,550,894.16/295,994.80
  6. Step 6: Final answer
    x = 194,674.20

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Similar ratio
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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.