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Finding the Fourth Proportional to 633,947.52, 874,868.74 and 347,468.34

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Solution

The fourth proportional to 633,947.52, 874,868.74 and 347,468.34 is: 479,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,947.52 : 874,868.74 = 347,468.34 : x
  2. Step 2: Convert to fraction form
    633,947.52/874,868.74 = 347,468.34/x
  3. Step 3: Cross multiply
    633,947.52x = 874,868.74 × 347,468.34
  4. Step 4: Simplify right side
    633,947.52x = 303,989,188,268.58
  5. Step 5: Solve for x
    x = 303,989,188,268.58/633,947.52
  6. Step 6: Final answer
    x = 479,517.91

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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.