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Finding the Fourth Proportional to 399,026.88, 598,653.12 and 162,539.52

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Solution

The fourth proportional to 399,026.88, 598,653.12 and 162,539.52 is: 243,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,026.88 : 598,653.12 = 162,539.52 : x
  2. Step 2: Convert to fraction form
    399,026.88/598,653.12 = 162,539.52/x
  3. Step 3: Cross multiply
    399,026.88x = 598,653.12 × 162,539.52
  4. Step 4: Simplify right side
    399,026.88x = 97,304,790,771.30
  5. Step 5: Solve for x
    x = 97,304,790,771.30/399,026.88
  6. Step 6: Final answer
    x = 243,855.23

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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.