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Finding the Fourth Proportional to 398,592,001.80, 597,888,002.70 and 398,592,001.80

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Solution

The fourth proportional to 398,592,001.80, 597,888,002.70 and 398,592,001.80 is: 597,888,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,592,001.80 : 597,888,002.70 = 398,592,001.80 : x
  2. Step 2: Convert to fraction form
    398,592,001.80/597,888,002.70 = 398,592,001.80/x
  3. Step 3: Cross multiply
    398,592,001.80x = 597,888,002.70 × 398,592,001.80
  4. Step 4: Simplify right side
    398,592,001.80x = 238,313,375,848,396,832
  5. Step 5: Solve for x
    x = 238,313,375,848,396,832/398,592,001.80
  6. Step 6: Final answer
    x = 597,888,002.70

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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.