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Finding the Fourth Proportional to 319,788,552.60, 479,682,828.90 and 319,788,552.60

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Solution

The fourth proportional to 319,788,552.60, 479,682,828.90 and 319,788,552.60 is: 479,682,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,788,552.60 : 479,682,828.90 = 319,788,552.60 : x
  2. Step 2: Convert to fraction form
    319,788,552.60/479,682,828.90 = 319,788,552.60/x
  3. Step 3: Cross multiply
    319,788,552.60x = 479,682,828.90 × 319,788,552.60
  4. Step 4: Simplify right side
    319,788,552.60x = 153,397,077,561,004,448
  5. Step 5: Solve for x
    x = 153,397,077,561,004,448/319,788,552.60
  6. Step 6: Final answer
    x = 479,682,828.90

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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.