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Finding the Fourth Proportional to 539,492,080.30, 809,238,120.45 and 539,492,080.30

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Solution

The fourth proportional to 539,492,080.30, 809,238,120.45 and 539,492,080.30 is: 809,238,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,492,080.30 : 809,238,120.45 = 539,492,080.30 : x
  2. Step 2: Convert to fraction form
    539,492,080.30/809,238,120.45 = 539,492,080.30/x
  3. Step 3: Cross multiply
    539,492,080.30x = 809,238,120.45 × 539,492,080.30
  4. Step 4: Simplify right side
    539,492,080.30x = 436,577,557,059,632,448
  5. Step 5: Solve for x
    x = 436,577,557,059,632,448/539,492,080.30
  6. Step 6: Final answer
    x = 809,238,120.45

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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.