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Finding the Fourth Proportional to 326,728,932.90, 457,760,628.30 and 326,728,932.90

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Solution

The fourth proportional to 326,728,932.90, 457,760,628.30 and 326,728,932.90 is: 457,760,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,728,932.90 : 457,760,628.30 = 326,728,932.90 : x
  2. Step 2: Convert to fraction form
    326,728,932.90/457,760,628.30 = 326,728,932.90/x
  3. Step 3: Cross multiply
    326,728,932.90x = 457,760,628.30 × 326,728,932.90
  4. Step 4: Simplify right side
    326,728,932.90x = 149,563,641,608,092,544
  5. Step 5: Solve for x
    x = 149,563,641,608,092,544/326,728,932.90
  6. Step 6: Final answer
    x = 457,760,628.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.