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Finding the Fourth Proportional to 317,284.20, 475,811.10 and 159,460.20

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Solution

The fourth proportional to 317,284.20, 475,811.10 and 159,460.20 is: 239,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,284.20 : 475,811.10 = 159,460.20 : x
  2. Step 2: Convert to fraction form
    317,284.20/475,811.10 = 159,460.20/x
  3. Step 3: Cross multiply
    317,284.20x = 475,811.10 × 159,460.20
  4. Step 4: Simplify right side
    317,284.20x = 75,872,933,168.22
  5. Step 5: Solve for x
    x = 75,872,933,168.22/317,284.20
  6. Step 6: Final answer
    x = 239,132.40

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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.