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Finding the Fourth Proportional to 695,388.11, 959,471.10 and 393,582.11

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Solution

The fourth proportional to 695,388.11, 959,471.10 and 393,582.11 is: 543,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,388.11 : 959,471.10 = 393,582.11 : x
  2. Step 2: Convert to fraction form
    695,388.11/959,471.10 = 393,582.11/x
  3. Step 3: Cross multiply
    695,388.11x = 959,471.10 × 393,582.11
  4. Step 4: Simplify right side
    695,388.11x = 377,630,655,224.67
  5. Step 5: Solve for x
    x = 377,630,655,224.67/695,388.11
  6. Step 6: Final answer
    x = 543,050.21

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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.