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Finding the Fourth Proportional to 681,267.91, 940,104.57 and 409,347.25

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Solution

The fourth proportional to 681,267.91, 940,104.57 and 409,347.25 is: 564,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,267.91 : 940,104.57 = 409,347.25 : x
  2. Step 2: Convert to fraction form
    681,267.91/940,104.57 = 409,347.25/x
  3. Step 3: Cross multiply
    681,267.91x = 940,104.57 × 409,347.25
  4. Step 4: Simplify right side
    681,267.91x = 384,829,220,441.93
  5. Step 5: Solve for x
    x = 384,829,220,441.93/681,267.91
  6. Step 6: Final answer
    x = 564,872.08

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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.