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Finding the Fourth Proportional to 501,761.25, 692,419.05 and 272,318.96

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Solution

The fourth proportional to 501,761.25, 692,419.05 and 272,318.96 is: 375,793.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,761.25 : 692,419.05 = 272,318.96 : x
  2. Step 2: Convert to fraction form
    501,761.25/692,419.05 = 272,318.96/x
  3. Step 3: Cross multiply
    501,761.25x = 692,419.05 × 272,318.96
  4. Step 4: Simplify right side
    501,761.25x = 188,558,837,311.24
  5. Step 5: Solve for x
    x = 188,558,837,311.24/501,761.25
  6. Step 6: Final answer
    x = 375,793.94

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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.