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Finding the Fourth Proportional to 539,491,567.55, 809,237,351.33 and 539,491,567.55

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Solution

The fourth proportional to 539,491,567.55, 809,237,351.33 and 539,491,567.55 is: 809,237,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,491,567.55 : 809,237,351.33 = 539,491,567.55 : x
  2. Step 2: Convert to fraction form
    539,491,567.55/809,237,351.33 = 539,491,567.55/x
  3. Step 3: Cross multiply
    539,491,567.55x = 809,237,351.33 × 539,491,567.55
  4. Step 4: Simplify right side
    539,491,567.55x = 436,576,727,186,334,336
  5. Step 5: Solve for x
    x = 436,576,727,186,334,336/539,491,567.55
  6. Step 6: Final answer
    x = 809,237,351.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.