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Finding the Fourth Proportional to 347,712,014.20, 521,568,021.30 and 347,712,014.20

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Solution

The fourth proportional to 347,712,014.20, 521,568,021.30 and 347,712,014.20 is: 521,568,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,712,014.20 : 521,568,021.30 = 347,712,014.20 : x
  2. Step 2: Convert to fraction form
    347,712,014.20/521,568,021.30 = 347,712,014.20/x
  3. Step 3: Cross multiply
    347,712,014.20x = 521,568,021.30 × 347,712,014.20
  4. Step 4: Simplify right side
    347,712,014.20x = 181,355,467,228,531,488
  5. Step 5: Solve for x
    x = 181,355,467,228,531,488/347,712,014.20
  6. Step 6: Final answer
    x = 521,568,021.30

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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.