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Finding the Fourth Proportional to 611,936.88, 844,594.38 and 391,032.96

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Solution

The fourth proportional to 611,936.88, 844,594.38 and 391,032.96 is: 539,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,936.88 : 844,594.38 = 391,032.96 : x
  2. Step 2: Convert to fraction form
    611,936.88/844,594.38 = 391,032.96/x
  3. Step 3: Cross multiply
    611,936.88x = 844,594.38 × 391,032.96
  4. Step 4: Simplify right side
    611,936.88x = 330,264,240,410.77
  5. Step 5: Solve for x
    x = 330,264,240,410.77/611,936.88
  6. Step 6: Final answer
    x = 539,703.12

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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.