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Finding the Fourth Proportional to 351,932,938.20, 493,726,480.20 and 351,932,938.20

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Solution

The fourth proportional to 351,932,938.20, 493,726,480.20 and 351,932,938.20 is: 493,726,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,932,938.20 : 493,726,480.20 = 351,932,938.20 : x
  2. Step 2: Convert to fraction form
    351,932,938.20/493,726,480.20 = 351,932,938.20/x
  3. Step 3: Cross multiply
    351,932,938.20x = 493,726,480.20 × 351,932,938.20
  4. Step 4: Simplify right side
    351,932,938.20x = 173,758,610,843,930,112
  5. Step 5: Solve for x
    x = 173,758,610,843,930,112/351,932,938.20
  6. Step 6: Final answer
    x = 493,726,480.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.