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Finding the Fourth Proportional to 363,360,643.80, 545,040,965.70 and 363,360,643.80

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Solution

The fourth proportional to 363,360,643.80, 545,040,965.70 and 363,360,643.80 is: 545,040,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,360,643.80 : 545,040,965.70 = 363,360,643.80 : x
  2. Step 2: Convert to fraction form
    363,360,643.80/545,040,965.70 = 363,360,643.80/x
  3. Step 3: Cross multiply
    363,360,643.80x = 545,040,965.70 × 363,360,643.80
  4. Step 4: Simplify right side
    363,360,643.80x = 198,046,436,194,125,728
  5. Step 5: Solve for x
    x = 198,046,436,194,125,728/363,360,643.80
  6. Step 6: Final answer
    x = 545,040,965.70

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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.