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Finding the Fourth Proportional to 610,664.69, 842,730.78 and 338,723.73

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Solution

The fourth proportional to 610,664.69, 842,730.78 and 338,723.73 is: 467,446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,664.69 : 842,730.78 = 338,723.73 : x
  2. Step 2: Convert to fraction form
    610,664.69/842,730.78 = 338,723.73/x
  3. Step 3: Cross multiply
    610,664.69x = 842,730.78 × 338,723.73
  4. Step 4: Simplify right side
    610,664.69x = 285,452,914,457.62
  5. Step 5: Solve for x
    x = 285,452,914,457.62/610,664.69
  6. Step 6: Final answer
    x = 467,446.24

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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.