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Finding the Fourth Proportional to 347,230.80, 520,846.20 and 97,912.80

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Solution

The fourth proportional to 347,230.80, 520,846.20 and 97,912.80 is: 146,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,230.80 : 520,846.20 = 97,912.80 : x
  2. Step 2: Convert to fraction form
    347,230.80/520,846.20 = 97,912.80/x
  3. Step 3: Cross multiply
    347,230.80x = 520,846.20 × 97,912.80
  4. Step 4: Simplify right side
    347,230.80x = 50,997,509,811.36
  5. Step 5: Solve for x
    x = 50,997,509,811.36/347,230.80
  6. Step 6: Final answer
    x = 146,869.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.