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Finding the Fourth Proportional to 539,492,028.55, 809,238,042.83 and 539,492,028.55

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Solution

The fourth proportional to 539,492,028.55, 809,238,042.83 and 539,492,028.55 is: 809,238,042.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,492,028.55 : 809,238,042.83 = 539,492,028.55 : x
  2. Step 2: Convert to fraction form
    539,492,028.55/809,238,042.83 = 539,492,028.55/x
  3. Step 3: Cross multiply
    539,492,028.55x = 809,238,042.83 × 539,492,028.55
  4. Step 4: Simplify right side
    539,492,028.55x = 436,577,473,306,188,480
  5. Step 5: Solve for x
    x = 436,577,473,306,188,480/539,492,028.55
  6. Step 6: Final answer
    x = 809,238,042.83

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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.