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Finding the Fourth Proportional to 4,839,978.04, 6,679,560.10 and 2,775,185.74

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Solution

The fourth proportional to 4,839,978.04, 6,679,560.10 and 2,775,185.74 is: 3,829,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839,978.04 : 6,679,560.10 = 2,775,185.74 : x
  2. Step 2: Convert to fraction form
    4,839,978.04/6,679,560.10 = 2,775,185.74/x
  3. Step 3: Cross multiply
    4,839,978.04x = 6,679,560.10 × 2,775,185.74
  4. Step 4: Simplify right side
    4,839,978.04x = 18,537,019,938,992.97
  5. Step 5: Solve for x
    x = 18,537,019,938,992.97/4,839,978.04
  6. Step 6: Final answer
    x = 3,829,980.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.