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Finding the Fourth Proportional to 624,199,855.01, 861,388,942.28 and 338,084,263.07

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Solution

The fourth proportional to 624,199,855.01, 861,388,942.28 and 338,084,263.07 is: 466,552,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,199,855.01 : 861,388,942.28 = 338,084,263.07 : x
  2. Step 2: Convert to fraction form
    624,199,855.01/861,388,942.28 = 338,084,263.07/x
  3. Step 3: Cross multiply
    624,199,855.01x = 861,388,942.28 × 338,084,263.07
  4. Step 4: Simplify right side
    624,199,855.01x = 291,222,045,767,843,584
  5. Step 5: Solve for x
    x = 291,222,045,767,843,584/624,199,855.01
  6. Step 6: Final answer
    x = 466,552,568.75

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