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Finding the Fourth Proportional to 509,337,002.20, 764,005,503.30 and 509,337,002.20

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Solution

The fourth proportional to 509,337,002.20, 764,005,503.30 and 509,337,002.20 is: 764,005,503.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,337,002.20 : 764,005,503.30 = 509,337,002.20 : x
  2. Step 2: Convert to fraction form
    509,337,002.20/764,005,503.30 = 509,337,002.20/x
  3. Step 3: Cross multiply
    509,337,002.20x = 764,005,503.30 × 509,337,002.20
  4. Step 4: Simplify right side
    509,337,002.20x = 389,136,272,715,124,160
  5. Step 5: Solve for x
    x = 389,136,272,715,124,160/509,337,002.20
  6. Step 6: Final answer
    x = 764,005,503.30

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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.