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Finding the Fourth Proportional to 317,866.44, 476,356.32 and 238,888.20

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Solution

The fourth proportional to 317,866.44, 476,356.32 and 238,888.20 is: 357,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,866.44 : 476,356.32 = 238,888.20 : x
  2. Step 2: Convert to fraction form
    317,866.44/476,356.32 = 238,888.20/x
  3. Step 3: Cross multiply
    317,866.44x = 476,356.32 × 238,888.20
  4. Step 4: Simplify right side
    317,866.44x = 113,795,903,843.42
  5. Step 5: Solve for x
    x = 113,795,903,843.42/317,866.44
  6. Step 6: Final answer
    x = 357,999.11

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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.