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Finding the Fourth Proportional to 606,528,736.80, 909,793,105.20 and 485,596,384.80

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Solution

The fourth proportional to 606,528,736.80, 909,793,105.20 and 485,596,384.80 is: 728,394,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,528,736.80 : 909,793,105.20 = 485,596,384.80 : x
  2. Step 2: Convert to fraction form
    606,528,736.80/909,793,105.20 = 485,596,384.80/x
  3. Step 3: Cross multiply
    606,528,736.80x = 909,793,105.20 × 485,596,384.80
  4. Step 4: Simplify right side
    606,528,736.80x = 441,792,242,801,086,144
  5. Step 5: Solve for x
    x = 441,792,242,801,086,144/606,528,736.80
  6. Step 6: Final answer
    x = 728,394,577.20

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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.