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Finding the Fourth Proportional to 347,012.40, 520,518.60 and 169,633.20

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Solution

The fourth proportional to 347,012.40, 520,518.60 and 169,633.20 is: 254,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,012.40 : 520,518.60 = 169,633.20 : x
  2. Step 2: Convert to fraction form
    347,012.40/520,518.60 = 169,633.20/x
  3. Step 3: Cross multiply
    347,012.40x = 520,518.60 × 169,633.20
  4. Step 4: Simplify right side
    347,012.40x = 88,297,235,777.52
  5. Step 5: Solve for x
    x = 88,297,235,777.52/347,012.40
  6. Step 6: Final answer
    x = 254,449.80

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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.