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Finding the Fourth Proportional to 616,938,781.80, 925,375,579.38 and 202,360,992.96

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Solution

The fourth proportional to 616,938,781.80, 925,375,579.38 and 202,360,992.96 is: 303,530,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,938,781.80 : 925,375,579.38 = 202,360,992.96 : x
  2. Step 2: Convert to fraction form
    616,938,781.80/925,375,579.38 = 202,360,992.96/x
  3. Step 3: Cross multiply
    616,938,781.80x = 925,375,579.38 × 202,360,992.96
  4. Step 4: Simplify right side
    616,938,781.80x = 187,259,921,104,272,096
  5. Step 5: Solve for x
    x = 187,259,921,104,272,096/616,938,781.80
  6. Step 6: Final answer
    x = 303,530,798.56

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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.