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Finding the Fourth Proportional to 442,856.20, 664,284.30 and 176,479.60

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Solution

The fourth proportional to 442,856.20, 664,284.30 and 176,479.60 is: 264,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,856.20 : 664,284.30 = 176,479.60 : x
  2. Step 2: Convert to fraction form
    442,856.20/664,284.30 = 176,479.60/x
  3. Step 3: Cross multiply
    442,856.20x = 664,284.30 × 176,479.60
  4. Step 4: Simplify right side
    442,856.20x = 117,232,627,550.28
  5. Step 5: Solve for x
    x = 117,232,627,550.28/442,856.20
  6. Step 6: Final answer
    x = 264,719.40

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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.