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Finding the Fourth Proportional to 502,091.18, 692,883.62 and 272,646.63

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Solution

The fourth proportional to 502,091.18, 692,883.62 and 272,646.63 is: 376,251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,091.18 : 692,883.62 = 272,646.63 : x
  2. Step 2: Convert to fraction form
    502,091.18/692,883.62 = 272,646.63/x
  3. Step 3: Cross multiply
    502,091.18x = 692,883.62 × 272,646.63
  4. Step 4: Simplify right side
    502,091.18x = 188,912,383,634.39
  5. Step 5: Solve for x
    x = 188,912,383,634.39/502,091.18
  6. Step 6: Final answer
    x = 376,251.15

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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.