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Finding the Fourth Proportional to 590,809,967.66, 815,320,251.16 and 322,891,270.22

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Solution

The fourth proportional to 590,809,967.66, 815,320,251.16 and 322,891,270.22 is: 445,591,316.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,809,967.66 : 815,320,251.16 = 322,891,270.22 : x
  2. Step 2: Convert to fraction form
    590,809,967.66/815,320,251.16 = 322,891,270.22/x
  3. Step 3: Cross multiply
    590,809,967.66x = 815,320,251.16 × 322,891,270.22
  4. Step 4: Simplify right side
    590,809,967.66x = 263,259,791,528,257,984
  5. Step 5: Solve for x
    x = 263,259,791,528,257,984/590,809,967.66
  6. Step 6: Final answer
    x = 445,591,316.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.