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Finding the Fourth Proportional to 633,908.52, 874,754.10 and 347,408.28

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Solution

The fourth proportional to 633,908.52, 874,754.10 and 347,408.28 is: 479,401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,908.52 : 874,754.10 = 347,408.28 : x
  2. Step 2: Convert to fraction form
    633,908.52/874,754.10 = 347,408.28/x
  3. Step 3: Cross multiply
    633,908.52x = 874,754.10 × 347,408.28
  4. Step 4: Simplify right side
    633,908.52x = 303,896,817,303.95
  5. Step 5: Solve for x
    x = 303,896,817,303.95/633,908.52
  6. Step 6: Final answer
    x = 479,401.69

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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.