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Finding the Fourth Proportional to 317,410.80, 476,116.20 and 238,095.60

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Solution

The fourth proportional to 317,410.80, 476,116.20 and 238,095.60 is: 357,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,410.80 : 476,116.20 = 238,095.60 : x
  2. Step 2: Convert to fraction form
    317,410.80/476,116.20 = 238,095.60/x
  3. Step 3: Cross multiply
    317,410.80x = 476,116.20 × 238,095.60
  4. Step 4: Simplify right side
    317,410.80x = 113,361,172,308.72
  5. Step 5: Solve for x
    x = 113,361,172,308.72/317,410.80
  6. Step 6: Final answer
    x = 357,143.40

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1.5x scale

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.