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Finding the Fourth Proportional to 602,376.21, 903,203.46 and 191,868.48

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Solution

The fourth proportional to 602,376.21, 903,203.46 and 191,868.48 is: 287,687.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,376.21 : 903,203.46 = 191,868.48 : x
  2. Step 2: Convert to fraction form
    602,376.21/903,203.46 = 191,868.48/x
  3. Step 3: Cross multiply
    602,376.21x = 903,203.46 × 191,868.48
  4. Step 4: Simplify right side
    602,376.21x = 173,296,275,000.94
  5. Step 5: Solve for x
    x = 173,296,275,000.94/602,376.21
  6. Step 6: Final answer
    x = 287,687.78

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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.