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Finding the Fourth Proportional to 633,822.97, 874,682.59 and 347,336.91

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Solution

The fourth proportional to 633,822.97, 874,682.59 and 347,336.91 is: 479,328.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,822.97 : 874,682.59 = 347,336.91 : x
  2. Step 2: Convert to fraction form
    633,822.97/874,682.59 = 347,336.91/x
  3. Step 3: Cross multiply
    633,822.97x = 874,682.59 × 347,336.91
  4. Step 4: Simplify right side
    633,822.97x = 303,809,548,041.40
  5. Step 5: Solve for x
    x = 303,809,548,041.40/633,822.97
  6. Step 6: Final answer
    x = 479,328.71

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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.