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Finding the Fourth Proportional to 436,610,011.20, 654,915,016.80 and 436,610,011.20

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Solution

The fourth proportional to 436,610,011.20, 654,915,016.80 and 436,610,011.20 is: 654,915,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,610,011.20 : 654,915,016.80 = 436,610,011.20 : x
  2. Step 2: Convert to fraction form
    436,610,011.20/654,915,016.80 = 436,610,011.20/x
  3. Step 3: Cross multiply
    436,610,011.20x = 654,915,016.80 × 436,610,011.20
  4. Step 4: Simplify right side
    436,610,011.20x = 285,942,452,820,096,160
  5. Step 5: Solve for x
    x = 285,942,452,820,096,160/436,610,011.20
  6. Step 6: Final answer
    x = 654,915,016.80

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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.