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Finding the Fourth Proportional to 408,439,853.82, 612,784,585.56 and 244,859,718.78

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Solution

The fourth proportional to 408,439,853.82, 612,784,585.56 and 244,859,718.78 is: 367,364,398.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,439,853.82 : 612,784,585.56 = 244,859,718.78 : x
  2. Step 2: Convert to fraction form
    408,439,853.82/612,784,585.56 = 244,859,718.78/x
  3. Step 3: Cross multiply
    408,439,853.82x = 612,784,585.56 × 244,859,718.78
  4. Step 4: Simplify right side
    408,439,853.82x = 150,046,261,292,940,448
  5. Step 5: Solve for x
    x = 150,046,261,292,940,448/408,439,853.82
  6. Step 6: Final answer
    x = 367,364,398.67

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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.