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Finding the Fourth Proportional to 608,993.01, 913,550.94 and 209,581.20

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Solution

The fourth proportional to 608,993.01, 913,550.94 and 209,581.20 is: 314,392.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,993.01 : 913,550.94 = 209,581.20 : x
  2. Step 2: Convert to fraction form
    608,993.01/913,550.94 = 209,581.20/x
  3. Step 3: Cross multiply
    608,993.01x = 913,550.94 × 209,581.20
  4. Step 4: Simplify right side
    608,993.01x = 191,463,102,266.33
  5. Step 5: Solve for x
    x = 191,463,102,266.33/608,993.01
  6. Step 6: Final answer
    x = 314,392.94

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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.