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Finding the Fourth Proportional to 405,731.30, 608,652.32 and 169,018.62

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Solution

The fourth proportional to 405,731.30, 608,652.32 and 169,018.62 is: 253,551.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,731.30 : 608,652.32 = 169,018.62 : x
  2. Step 2: Convert to fraction form
    405,731.30/608,652.32 = 169,018.62/x
  3. Step 3: Cross multiply
    405,731.30x = 608,652.32 × 169,018.62
  4. Step 4: Simplify right side
    405,731.30x = 102,873,575,186.20
  5. Step 5: Solve for x
    x = 102,873,575,186.20/405,731.30
  6. Step 6: Final answer
    x = 253,551.00

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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.