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Finding the Fourth Proportional to 590,976,636.80, 886,464,955.20 and 547,978,467.20

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Solution

The fourth proportional to 590,976,636.80, 886,464,955.20 and 547,978,467.20 is: 821,967,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,976,636.80 : 886,464,955.20 = 547,978,467.20 : x
  2. Step 2: Convert to fraction form
    590,976,636.80/886,464,955.20 = 547,978,467.20/x
  3. Step 3: Cross multiply
    590,976,636.80x = 886,464,955.20 × 547,978,467.20
  4. Step 4: Simplify right side
    590,976,636.80x = 485,763,707,377,012,736
  5. Step 5: Solve for x
    x = 485,763,707,377,012,736/590,976,636.80
  6. Step 6: Final answer
    x = 821,967,700.80

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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.