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Finding the Fourth Proportional to 633,792.78, 874,655.34 and 347,310.36

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Solution

The fourth proportional to 633,792.78, 874,655.34 and 347,310.36 is: 479,299.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,792.78 : 874,655.34 = 347,310.36 : x
  2. Step 2: Convert to fraction form
    633,792.78/874,655.34 = 347,310.36/x
  3. Step 3: Cross multiply
    633,792.78x = 874,655.34 × 347,310.36
  4. Step 4: Simplify right side
    633,792.78x = 303,776,861,011.32
  5. Step 5: Solve for x
    x = 303,776,861,011.32/633,792.78
  6. Step 6: Final answer
    x = 479,299.97

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1.5x scale

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.