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Finding the Fourth Proportional to 295,247.20, 442,870.80 and 268,520.80

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Solution

The fourth proportional to 295,247.20, 442,870.80 and 268,520.80 is: 402,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,247.20 : 442,870.80 = 268,520.80 : x
  2. Step 2: Convert to fraction form
    295,247.20/442,870.80 = 268,520.80/x
  3. Step 3: Cross multiply
    295,247.20x = 442,870.80 × 268,520.80
  4. Step 4: Simplify right side
    295,247.20x = 118,920,021,512.64
  5. Step 5: Solve for x
    x = 118,920,021,512.64/295,247.20
  6. Step 6: Final answer
    x = 402,781.20

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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.