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Finding the Fourth Proportional to 615,413,571.90, 922,336,537.05 and 251,496,771.90

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Solution

The fourth proportional to 615,413,571.90, 922,336,537.05 and 251,496,771.90 is: 376,924,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,413,571.90 : 922,336,537.05 = 251,496,771.90 : x
  2. Step 2: Convert to fraction form
    615,413,571.90/922,336,537.05 = 251,496,771.90/x
  3. Step 3: Cross multiply
    615,413,571.90x = 922,336,537.05 × 251,496,771.90
  4. Step 4: Simplify right side
    615,413,571.90x = 231,964,661,673,499,744
  5. Step 5: Solve for x
    x = 231,964,661,673,499,744/615,413,571.90
  6. Step 6: Final answer
    x = 376,924,839.27

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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.