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Finding the Fourth Proportional to 405,760.12, 608,695.51 and 169,047.44

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Solution

The fourth proportional to 405,760.12, 608,695.51 and 169,047.44 is: 253,594.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,760.12 : 608,695.51 = 169,047.44 : x
  2. Step 2: Convert to fraction form
    405,760.12/608,695.51 = 169,047.44/x
  3. Step 3: Cross multiply
    405,760.12x = 608,695.51 × 169,047.44
  4. Step 4: Simplify right side
    405,760.12x = 102,898,417,704.99
  5. Step 5: Solve for x
    x = 102,898,417,704.99/405,760.12
  6. Step 6: Final answer
    x = 253,594.21

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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.