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Finding the Fourth Proportional to 633,361.61, 874,021.92 and 361,424.63

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Solution

The fourth proportional to 633,361.61, 874,021.92 and 361,424.63 is: 498,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,361.61 : 874,021.92 = 361,424.63 : x
  2. Step 2: Convert to fraction form
    633,361.61/874,021.92 = 361,424.63/x
  3. Step 3: Cross multiply
    633,361.61x = 874,021.92 × 361,424.63
  4. Step 4: Simplify right side
    633,361.61x = 315,893,049,047.89
  5. Step 5: Solve for x
    x = 315,893,049,047.89/633,361.61
  6. Step 6: Final answer
    x = 498,756.23

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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.