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Finding the Fourth Proportional to 306,662.60, 423,175.38 and 179,330.60

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Solution

The fourth proportional to 306,662.60, 423,175.38 and 179,330.60 is: 247,465.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,662.60 : 423,175.38 = 179,330.60 : x
  2. Step 2: Convert to fraction form
    306,662.60/423,175.38 = 179,330.60/x
  3. Step 3: Cross multiply
    306,662.60x = 423,175.38 × 179,330.60
  4. Step 4: Simplify right side
    306,662.60x = 75,888,294,800.63
  5. Step 5: Solve for x
    x = 75,888,294,800.63/306,662.60
  6. Step 6: Final answer
    x = 247,465.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.