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Finding the Fourth Proportional to 472,936.80, 709,606.80 and 248,469.60

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Solution

The fourth proportional to 472,936.80, 709,606.80 and 248,469.60 is: 372,810.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,936.80 : 709,606.80 = 248,469.60 : x
  2. Step 2: Convert to fraction form
    472,936.80/709,606.80 = 248,469.60/x
  3. Step 3: Cross multiply
    472,936.80x = 709,606.80 × 248,469.60
  4. Step 4: Simplify right side
    472,936.80x = 176,315,717,753.28
  5. Step 5: Solve for x
    x = 176,315,717,753.28/472,936.80
  6. Step 6: Final answer
    x = 372,810.32

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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.