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Finding the Fourth Proportional to 633,823.82, 874,683.75 and 347,337.75

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Solution

The fourth proportional to 633,823.82, 874,683.75 and 347,337.75 is: 479,329.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,823.82 : 874,683.75 = 347,337.75 : x
  2. Step 2: Convert to fraction form
    633,823.82/874,683.75 = 347,337.75/x
  3. Step 3: Cross multiply
    633,823.82x = 874,683.75 × 347,337.75
  4. Step 4: Simplify right side
    633,823.82x = 303,810,685,686.56
  5. Step 5: Solve for x
    x = 303,810,685,686.56/633,823.82
  6. Step 6: Final answer
    x = 479,329.87

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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.