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Finding the Fourth Proportional to 317,858.94, 476,345.07 and 238,880.70

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Solution

The fourth proportional to 317,858.94, 476,345.07 and 238,880.70 is: 357,987.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,858.94 : 476,345.07 = 238,880.70 : x
  2. Step 2: Convert to fraction form
    317,858.94/476,345.07 = 238,880.70/x
  3. Step 3: Cross multiply
    317,858.94x = 476,345.07 × 238,880.70
  4. Step 4: Simplify right side
    317,858.94x = 113,789,643,763.15
  5. Step 5: Solve for x
    x = 113,789,643,763.15/317,858.94
  6. Step 6: Final answer
    x = 357,987.87

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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.