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Finding the Fourth Proportional to 363,540.40, 501,681 and 210,599.44

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Solution

The fourth proportional to 363,540.40, 501,681 and 210,599.44 is: 290,624.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,540.40 : 501,681 = 210,599.44 : x
  2. Step 2: Convert to fraction form
    363,540.40/501,681 = 210,599.44/x
  3. Step 3: Cross multiply
    363,540.40x = 501,681 × 210,599.44
  4. Step 4: Simplify right side
    363,540.40x = 105,653,737,658.64
  5. Step 5: Solve for x
    x = 105,653,737,658.64/363,540.40
  6. Step 6: Final answer
    x = 290,624.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.