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Finding the Fourth Proportional to 472,393,076.80, 708,589,615.20 and 373,757,627.20

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Solution

The fourth proportional to 472,393,076.80, 708,589,615.20 and 373,757,627.20 is: 560,636,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,076.80 : 708,589,615.20 = 373,757,627.20 : x
  2. Step 2: Convert to fraction form
    472,393,076.80/708,589,615.20 = 373,757,627.20/x
  3. Step 3: Cross multiply
    472,393,076.80x = 708,589,615.20 × 373,757,627.20
  4. Step 4: Simplify right side
    472,393,076.80x = 264,840,773,235,713,056
  5. Step 5: Solve for x
    x = 264,840,773,235,713,056/472,393,076.80
  6. Step 6: Final answer
    x = 560,636,440.80

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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.