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Finding the Fourth Proportional to 633,905.92, 945,271.76 and 628,220.80

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Solution

The fourth proportional to 633,905.92, 945,271.76 and 628,220.80 is: 936,794.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,905.92 : 945,271.76 = 628,220.80 : x
  2. Step 2: Convert to fraction form
    633,905.92/945,271.76 = 628,220.80/x
  3. Step 3: Cross multiply
    633,905.92x = 945,271.76 × 628,220.80
  4. Step 4: Simplify right side
    633,905.92x = 593,839,381,284.61
  5. Step 5: Solve for x
    x = 593,839,381,284.61/633,905.92
  6. Step 6: Final answer
    x = 936,794.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.