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Finding the Fourth Proportional to 633,824.57, 874,684.79 and 347,338.50

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Solution

The fourth proportional to 633,824.57, 874,684.79 and 347,338.50 is: 479,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,824.57 : 874,684.79 = 347,338.50 : x
  2. Step 2: Convert to fraction form
    633,824.57/874,684.79 = 347,338.50/x
  3. Step 3: Cross multiply
    633,824.57x = 874,684.79 × 347,338.50
  4. Step 4: Simplify right side
    633,824.57x = 303,811,701,194.72
  5. Step 5: Solve for x
    x = 303,811,701,194.72/633,824.57
  6. Step 6: Final answer
    x = 479,330.90

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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.