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Finding the Fourth Proportional to 539,614,530.70, 809,421,796.05 and 539,614,530.70

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Solution

The fourth proportional to 539,614,530.70, 809,421,796.05 and 539,614,530.70 is: 809,421,796.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,614,530.70 : 809,421,796.05 = 539,614,530.70 : x
  2. Step 2: Convert to fraction form
    539,614,530.70/809,421,796.05 = 539,614,530.70/x
  3. Step 3: Cross multiply
    539,614,530.70x = 809,421,796.05 × 539,614,530.70
  4. Step 4: Simplify right side
    539,614,530.70x = 436,775,762,613,871,872
  5. Step 5: Solve for x
    x = 436,775,762,613,871,872/539,614,530.70
  6. Step 6: Final answer
    x = 809,421,796.05

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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.