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Finding the Fourth Proportional to 394,168,093.60, 591,252,140.40 and 394,168,093.60

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Solution

The fourth proportional to 394,168,093.60, 591,252,140.40 and 394,168,093.60 is: 591,252,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,168,093.60 : 591,252,140.40 = 394,168,093.60 : x
  2. Step 2: Convert to fraction form
    394,168,093.60/591,252,140.40 = 394,168,093.60/x
  3. Step 3: Cross multiply
    394,168,093.60x = 591,252,140.40 × 394,168,093.60
  4. Step 4: Simplify right side
    394,168,093.60x = 233,052,729,018,387,552
  5. Step 5: Solve for x
    x = 233,052,729,018,387,552/394,168,093.60
  6. Step 6: Final answer
    x = 591,252,140.40

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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.