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Finding the Fourth Proportional to 608,374.67, 912,660.41 and 253,424.57

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Solution

The fourth proportional to 608,374.67, 912,660.41 and 253,424.57 is: 380,177.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,374.67 : 912,660.41 = 253,424.57 : x
  2. Step 2: Convert to fraction form
    608,374.67/912,660.41 = 253,424.57/x
  3. Step 3: Cross multiply
    608,374.67x = 912,660.41 × 253,424.57
  4. Step 4: Simplify right side
    608,374.67x = 231,290,568,030.53
  5. Step 5: Solve for x
    x = 231,290,568,030.53/608,374.67
  6. Step 6: Final answer
    x = 380,177.84

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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.