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Finding the Fourth Proportional to 329,771,208.80, 494,656,813.20 and 191,454,831.20

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Solution

The fourth proportional to 329,771,208.80, 494,656,813.20 and 191,454,831.20 is: 287,182,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,771,208.80 : 494,656,813.20 = 191,454,831.20 : x
  2. Step 2: Convert to fraction form
    329,771,208.80/494,656,813.20 = 191,454,831.20/x
  3. Step 3: Cross multiply
    329,771,208.80x = 494,656,813.20 × 191,454,831.20
  4. Step 4: Simplify right side
    329,771,208.80x = 94,704,436,673,135,920
  5. Step 5: Solve for x
    x = 94,704,436,673,135,920/329,771,208.80
  6. Step 6: Final answer
    x = 287,182,246.80

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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.