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Finding the Fourth Proportional to 423,703.20, 635,349.60 and 246,261.36

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Solution

The fourth proportional to 423,703.20, 635,349.60 and 246,261.36 is: 369,272.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,703.20 : 635,349.60 = 246,261.36 : x
  2. Step 2: Convert to fraction form
    423,703.20/635,349.60 = 246,261.36/x
  3. Step 3: Cross multiply
    423,703.20x = 635,349.60 × 246,261.36
  4. Step 4: Simplify right side
    423,703.20x = 156,462,056,571.46
  5. Step 5: Solve for x
    x = 156,462,056,571.46/423,703.20
  6. Step 6: Final answer
    x = 369,272.78

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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.