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Finding the Fourth Proportional to 488,693,172.84, 674,205,754.50 and 279,737,647.08

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Solution

The fourth proportional to 488,693,172.84, 674,205,754.50 and 279,737,647.08 is: 385,928,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,693,172.84 : 674,205,754.50 = 279,737,647.08 : x
  2. Step 2: Convert to fraction form
    488,693,172.84/674,205,754.50 = 279,737,647.08/x
  3. Step 3: Cross multiply
    488,693,172.84x = 674,205,754.50 × 279,737,647.08
  4. Step 4: Simplify right side
    488,693,172.84x = 188,600,731,411,626,112
  5. Step 5: Solve for x
    x = 188,600,731,411,626,112/488,693,172.84
  6. Step 6: Final answer
    x = 385,928,721.52

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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.