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Finding the Fourth Proportional to 633,910.52, 874,756.86 and 347,410.28

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Solution

The fourth proportional to 633,910.52, 874,756.86 and 347,410.28 is: 479,404.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,910.52 : 874,756.86 = 347,410.28 : x
  2. Step 2: Convert to fraction form
    633,910.52/874,756.86 = 347,410.28/x
  3. Step 3: Cross multiply
    633,910.52x = 874,756.86 × 347,410.28
  4. Step 4: Simplify right side
    633,910.52x = 303,899,525,664.52
  5. Step 5: Solve for x
    x = 303,899,525,664.52/633,910.52
  6. Step 6: Final answer
    x = 479,404.45

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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.