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Finding the Fourth Proportional to 633,515.62, 874,251.72 and 347,045.89

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Solution

The fourth proportional to 633,515.62, 874,251.72 and 347,045.89 is: 478,923.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,515.62 : 874,251.72 = 347,045.89 : x
  2. Step 2: Convert to fraction form
    633,515.62/874,251.72 = 347,045.89/x
  3. Step 3: Cross multiply
    633,515.62x = 874,251.72 × 347,045.89
  4. Step 4: Simplify right side
    633,515.62x = 303,405,466,251.43
  5. Step 5: Solve for x
    x = 303,405,466,251.43/633,515.62
  6. Step 6: Final answer
    x = 478,923.42

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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.