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Finding the Fourth Proportional to 368,517.80, 508,548.48 and 207,372.76

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Solution

The fourth proportional to 368,517.80, 508,548.48 and 207,372.76 is: 286,170.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,517.80 : 508,548.48 = 207,372.76 : x
  2. Step 2: Convert to fraction form
    368,517.80/508,548.48 = 207,372.76/x
  3. Step 3: Cross multiply
    368,517.80x = 508,548.48 × 207,372.76
  4. Step 4: Simplify right side
    368,517.80x = 105,459,099,842.39
  5. Step 5: Solve for x
    x = 105,459,099,842.39/368,517.80
  6. Step 6: Final answer
    x = 286,170.98

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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.