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Finding the Fourth Proportional to 501,840.82, 692,541.92 and 272,398.28

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Solution

The fourth proportional to 501,840.82, 692,541.92 and 272,398.28 is: 375,910.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,840.82 : 692,541.92 = 272,398.28 : x
  2. Step 2: Convert to fraction form
    501,840.82/692,541.92 = 272,398.28/x
  3. Step 3: Cross multiply
    501,840.82x = 692,541.92 × 272,398.28
  4. Step 4: Simplify right side
    501,840.82x = 188,647,226,473.91
  5. Step 5: Solve for x
    x = 188,647,226,473.91/501,840.82
  6. Step 6: Final answer
    x = 375,910.49

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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.