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Finding the Fourth Proportional to 424,839,512.40, 637,259,268.60 and 424,839,512.40

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Solution

The fourth proportional to 424,839,512.40, 637,259,268.60 and 424,839,512.40 is: 637,259,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,839,512.40 : 637,259,268.60 = 424,839,512.40 : x
  2. Step 2: Convert to fraction form
    424,839,512.40/637,259,268.60 = 424,839,512.40/x
  3. Step 3: Cross multiply
    424,839,512.40x = 637,259,268.60 × 424,839,512.40
  4. Step 4: Simplify right side
    424,839,512.40x = 270,732,916,944,404,640
  5. Step 5: Solve for x
    x = 270,732,916,944,404,640/424,839,512.40
  6. Step 6: Final answer
    x = 637,259,268.60

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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.