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Finding the Fourth Proportional to 608,653.22, 912,386.50 and 253,768.73

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Solution

The fourth proportional to 608,653.22, 912,386.50 and 253,768.73 is: 380,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,653.22 : 912,386.50 = 253,768.73 : x
  2. Step 2: Convert to fraction form
    608,653.22/912,386.50 = 253,768.73/x
  3. Step 3: Cross multiply
    608,653.22x = 912,386.50 × 253,768.73
  4. Step 4: Simplify right side
    608,653.22x = 231,535,162,550.87
  5. Step 5: Solve for x
    x = 231,535,162,550.87/608,653.22
  6. Step 6: Final answer
    x = 380,405.71

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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.