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Finding the Fourth Proportional to 633,785.27, 874,644.98 and 347,302.85

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Solution

The fourth proportional to 633,785.27, 874,644.98 and 347,302.85 is: 479,289.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,785.27 : 874,644.98 = 347,302.85 : x
  2. Step 2: Convert to fraction form
    633,785.27/874,644.98 = 347,302.85/x
  3. Step 3: Cross multiply
    633,785.27x = 874,644.98 × 347,302.85
  4. Step 4: Simplify right side
    633,785.27x = 303,766,688,182.45
  5. Step 5: Solve for x
    x = 303,766,688,182.45/633,785.27
  6. Step 6: Final answer
    x = 479,289.60

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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.