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Finding the Fourth Proportional to 681,788.67, 940,924.35 and 375,892.98

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Solution

The fourth proportional to 681,788.67, 940,924.35 and 375,892.98 is: 518,763.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,788.67 : 940,924.35 = 375,892.98 : x
  2. Step 2: Convert to fraction form
    681,788.67/940,924.35 = 375,892.98/x
  3. Step 3: Cross multiply
    681,788.67x = 940,924.35 × 375,892.98
  4. Step 4: Simplify right side
    681,788.67x = 353,686,857,876.06
  5. Step 5: Solve for x
    x = 353,686,857,876.06/681,788.67
  6. Step 6: Final answer
    x = 518,763.18

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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.