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Finding the Fourth Proportional to 469,185.31, 703,669.98 and 279,699.08

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Solution

The fourth proportional to 469,185.31, 703,669.98 and 279,699.08 is: 419,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,185.31 : 703,669.98 = 279,699.08 : x
  2. Step 2: Convert to fraction form
    469,185.31/703,669.98 = 279,699.08/x
  3. Step 3: Cross multiply
    469,185.31x = 703,669.98 × 279,699.08
  4. Step 4: Simplify right side
    469,185.31x = 196,815,843,560.14
  5. Step 5: Solve for x
    x = 196,815,843,560.14/469,185.31
  6. Step 6: Final answer
    x = 419,484.24

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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.