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Finding the Fourth Proportional to 538,361,567.55, 807,542,351.33 and 538,361,567.55

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Solution

The fourth proportional to 538,361,567.55, 807,542,351.33 and 538,361,567.55 is: 807,542,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,361,567.55 : 807,542,351.33 = 538,361,567.55 : x
  2. Step 2: Convert to fraction form
    538,361,567.55/807,542,351.33 = 538,361,567.55/x
  3. Step 3: Cross multiply
    538,361,567.55x = 807,542,351.33 × 538,361,567.55
  4. Step 4: Simplify right side
    538,361,567.55x = 434,749,766,122,339,776
  5. Step 5: Solve for x
    x = 434,749,766,122,339,776/538,361,567.55
  6. Step 6: Final answer
    x = 807,542,351.33

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Double scale
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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.