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Finding the Fourth Proportional to 269,835.20, 404,752.80 and 262,059.20

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Solution

The fourth proportional to 269,835.20, 404,752.80 and 262,059.20 is: 393,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,835.20 : 404,752.80 = 262,059.20 : x
  2. Step 2: Convert to fraction form
    269,835.20/404,752.80 = 262,059.20/x
  3. Step 3: Cross multiply
    269,835.20x = 404,752.80 × 262,059.20
  4. Step 4: Simplify right side
    269,835.20x = 106,069,194,965.76
  5. Step 5: Solve for x
    x = 106,069,194,965.76/269,835.20
  6. Step 6: Final answer
    x = 393,088.80

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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.