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Finding the Fourth Proportional to 606,633.28, 910,057.92 and 207,318.40

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Solution

The fourth proportional to 606,633.28, 910,057.92 and 207,318.40 is: 311,014.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,633.28 : 910,057.92 = 207,318.40 : x
  2. Step 2: Convert to fraction form
    606,633.28/910,057.92 = 207,318.40/x
  3. Step 3: Cross multiply
    606,633.28x = 910,057.92 × 207,318.40
  4. Step 4: Simplify right side
    606,633.28x = 188,671,751,881.73
  5. Step 5: Solve for x
    x = 188,671,751,881.73/606,633.28
  6. Step 6: Final answer
    x = 311,014.51

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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.