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Finding the Fourth Proportional to 624,079.20, 935,989.20 and 269,104.80

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Solution

The fourth proportional to 624,079.20, 935,989.20 and 269,104.80 is: 403,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,079.20 : 935,989.20 = 269,104.80 : x
  2. Step 2: Convert to fraction form
    624,079.20/935,989.20 = 269,104.80/x
  3. Step 3: Cross multiply
    624,079.20x = 935,989.20 × 269,104.80
  4. Step 4: Simplify right side
    624,079.20x = 251,879,186,468.16
  5. Step 5: Solve for x
    x = 251,879,186,468.16/624,079.20
  6. Step 6: Final answer
    x = 403,601.32

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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.