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Finding the Fourth Proportional to 407,754.87, 562,698.39 and 223,996.51

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Solution

The fourth proportional to 407,754.87, 562,698.39 and 223,996.51 is: 309,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,754.87 : 562,698.39 = 223,996.51 : x
  2. Step 2: Convert to fraction form
    407,754.87/562,698.39 = 223,996.51/x
  3. Step 3: Cross multiply
    407,754.87x = 562,698.39 × 223,996.51
  4. Step 4: Simplify right side
    407,754.87x = 126,042,475,542.62
  5. Step 5: Solve for x
    x = 126,042,475,542.62/407,754.87
  6. Step 6: Final answer
    x = 309,113.35

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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.