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Finding the Fourth Proportional to 762,888,510, 1,144,503,351 and 278,214,318

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Solution

The fourth proportional to 762,888,510, 1,144,503,351 and 278,214,318 is: 417,383,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,888,510 : 1,144,503,351 = 278,214,318 : x
  2. Step 2: Convert to fraction form
    762,888,510/1,144,503,351 = 278,214,318/x
  3. Step 3: Cross multiply
    762,888,510x = 1,144,503,351 × 278,214,318
  4. Step 4: Simplify right side
    762,888,510x = 318,417,219,247,179,648
  5. Step 5: Solve for x
    x = 318,417,219,247,179,648/762,888,510
  6. Step 6: Final answer
    x = 417,383,687.23

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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.