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Finding the Fourth Proportional to 608,628.94, 912,350.08 and 253,744.45

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Solution

The fourth proportional to 608,628.94, 912,350.08 and 253,744.45 is: 380,369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,628.94 : 912,350.08 = 253,744.45 : x
  2. Step 2: Convert to fraction form
    608,628.94/912,350.08 = 253,744.45/x
  3. Step 3: Cross multiply
    608,628.94x = 912,350.08 × 253,744.45
  4. Step 4: Simplify right side
    608,628.94x = 231,503,767,293.36
  5. Step 5: Solve for x
    x = 231,503,767,293.36/608,628.94
  6. Step 6: Final answer
    x = 380,369.31

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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.