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Finding the Fourth Proportional to 633,957.63, 874,859.72 and 347,476.83

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Solution

The fourth proportional to 633,957.63, 874,859.72 and 347,476.83 is: 479,517.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,957.63 : 874,859.72 = 347,476.83 : x
  2. Step 2: Convert to fraction form
    633,957.63/874,859.72 = 347,476.83/x
  3. Step 3: Cross multiply
    633,957.63x = 874,859.72 × 347,476.83
  4. Step 4: Simplify right side
    633,957.63x = 303,993,480,462.90
  5. Step 5: Solve for x
    x = 303,993,480,462.90/633,957.63
  6. Step 6: Final answer
    x = 479,517.03

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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.