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Finding the Fourth Proportional to 617,933, 926,905.18 and 243,956

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Solution

The fourth proportional to 617,933, 926,905.18 and 243,956 is: 365,936.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,933 : 926,905.18 = 243,956 : x
  2. Step 2: Convert to fraction form
    617,933/926,905.18 = 243,956/x
  3. Step 3: Cross multiply
    617,933x = 926,905.18 × 243,956
  4. Step 4: Simplify right side
    617,933x = 226,124,080,092.08
  5. Step 5: Solve for x
    x = 226,124,080,092.08/617,933
  6. Step 6: Final answer
    x = 365,936.24

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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.