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Finding the Fourth Proportional to 498,100.88, 687,526.44 and 347,246.48

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Solution

The fourth proportional to 498,100.88, 687,526.44 and 347,246.48 is: 479,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,100.88 : 687,526.44 = 347,246.48 : x
  2. Step 2: Convert to fraction form
    498,100.88/687,526.44 = 347,246.48/x
  3. Step 3: Cross multiply
    498,100.88x = 687,526.44 × 347,246.48
  4. Step 4: Simplify right side
    498,100.88x = 238,741,136,196.93
  5. Step 5: Solve for x
    x = 238,741,136,196.93/498,100.88
  6. Step 6: Final answer
    x = 479,302.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.