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Finding the Fourth Proportional to 624,805,053.90, 862,237,974.56 and 356,916,348.46

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Solution

The fourth proportional to 624,805,053.90, 862,237,974.56 and 356,916,348.46 is: 492,548,559.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,805,053.90 : 862,237,974.56 = 356,916,348.46 : x
  2. Step 2: Convert to fraction form
    624,805,053.90/862,237,974.56 = 356,916,348.46/x
  3. Step 3: Cross multiply
    624,805,053.90x = 862,237,974.56 × 356,916,348.46
  4. Step 4: Simplify right side
    624,805,053.90x = 307,746,829,383,501,568
  5. Step 5: Solve for x
    x = 307,746,829,383,501,568/624,805,053.90
  6. Step 6: Final answer
    x = 492,548,559.69

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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.