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Finding the Fourth Proportional to 699,126.56, 964,876.56 and 397,365.92

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Solution

The fourth proportional to 699,126.56, 964,876.56 and 397,365.92 is: 548,411.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,126.56 : 964,876.56 = 397,365.92 : x
  2. Step 2: Convert to fraction form
    699,126.56/964,876.56 = 397,365.92/x
  3. Step 3: Cross multiply
    699,126.56x = 964,876.56 × 397,365.92
  4. Step 4: Simplify right side
    699,126.56x = 383,409,061,950.84
  5. Step 5: Solve for x
    x = 383,409,061,950.84/699,126.56
  6. Step 6: Final answer
    x = 548,411.52

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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.