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Finding the Fourth Proportional to 582,917,614.80, 874,712,345.40 and 219,672,661.20

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Solution

The fourth proportional to 582,917,614.80, 874,712,345.40 and 219,672,661.20 is: 329,635,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,917,614.80 : 874,712,345.40 = 219,672,661.20 : x
  2. Step 2: Convert to fraction form
    582,917,614.80/874,712,345.40 = 219,672,661.20/x
  3. Step 3: Cross multiply
    582,917,614.80x = 874,712,345.40 × 219,672,661.20
  4. Step 4: Simplify right side
    582,917,614.80x = 192,150,388,698,511,552
  5. Step 5: Solve for x
    x = 192,150,388,698,511,552/582,917,614.80
  6. Step 6: Final answer
    x = 329,635,584.55

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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.