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Finding the Fourth Proportional to 550,717.88, 825,874.98 and 190,795.78

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Solution

The fourth proportional to 550,717.88, 825,874.98 and 190,795.78 is: 286,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,717.88 : 825,874.98 = 190,795.78 : x
  2. Step 2: Convert to fraction form
    550,717.88/825,874.98 = 190,795.78/x
  3. Step 3: Cross multiply
    550,717.88x = 825,874.98 × 190,795.78
  4. Step 4: Simplify right side
    550,717.88x = 157,573,460,991.58
  5. Step 5: Solve for x
    x = 157,573,460,991.58/550,717.88
  6. Step 6: Final answer
    x = 286,123.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.