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Finding the Fourth Proportional to 405,908.48, 560,378.94 and 244,804.52

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Solution

The fourth proportional to 405,908.48, 560,378.94 and 244,804.52 is: 337,966.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,908.48 : 560,378.94 = 244,804.52 : x
  2. Step 2: Convert to fraction form
    405,908.48/560,378.94 = 244,804.52/x
  3. Step 3: Cross multiply
    405,908.48x = 560,378.94 × 244,804.52
  4. Step 4: Simplify right side
    405,908.48x = 137,183,297,424.81
  5. Step 5: Solve for x
    x = 137,183,297,424.81/405,908.48
  6. Step 6: Final answer
    x = 337,966.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.