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Finding the Fourth Proportional to 681,442.01, 940,396.31 and 375,529.36

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Solution

The fourth proportional to 681,442.01, 940,396.31 and 375,529.36 is: 518,234.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,442.01 : 940,396.31 = 375,529.36 : x
  2. Step 2: Convert to fraction form
    681,442.01/940,396.31 = 375,529.36/x
  3. Step 3: Cross multiply
    681,442.01x = 940,396.31 × 375,529.36
  4. Step 4: Simplify right side
    681,442.01x = 353,146,420,212.02
  5. Step 5: Solve for x
    x = 353,146,420,212.02/681,442.01
  6. Step 6: Final answer
    x = 518,234.01

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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.