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Finding the Fourth Proportional to 330,346.71, 455,866.26 and 179,440.47

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Solution

The fourth proportional to 330,346.71, 455,866.26 and 179,440.47 is: 247,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,346.71 : 455,866.26 = 179,440.47 : x
  2. Step 2: Convert to fraction form
    330,346.71/455,866.26 = 179,440.47/x
  3. Step 3: Cross multiply
    330,346.71x = 455,866.26 × 179,440.47
  4. Step 4: Simplify right side
    330,346.71x = 81,800,855,951.54
  5. Step 5: Solve for x
    x = 81,800,855,951.54/330,346.71
  6. Step 6: Final answer
    x = 247,621.22

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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.