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Finding the Fourth Proportional to 675,891.66, 932,667.18 and 403,905.42

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Solution

The fourth proportional to 675,891.66, 932,667.18 and 403,905.42 is: 557,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,891.66 : 932,667.18 = 403,905.42 : x
  2. Step 2: Convert to fraction form
    675,891.66/932,667.18 = 403,905.42/x
  3. Step 3: Cross multiply
    675,891.66x = 932,667.18 × 403,905.42
  4. Step 4: Simplify right side
    675,891.66x = 376,709,329,058.12
  5. Step 5: Solve for x
    x = 376,709,329,058.12/675,891.66
  6. Step 6: Final answer
    x = 557,351.65

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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.