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Finding the Fourth Proportional to 4,679,844.73, 7,019,763.89 and 1,762,487.91

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Solution

The fourth proportional to 4,679,844.73, 7,019,763.89 and 1,762,487.91 is: 2,643,730.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679,844.73 : 7,019,763.89 = 1,762,487.91 : x
  2. Step 2: Convert to fraction form
    4,679,844.73/7,019,763.89 = 1,762,487.91/x
  3. Step 3: Cross multiply
    4,679,844.73x = 7,019,763.89 × 1,762,487.91
  4. Step 4: Simplify right side
    4,679,844.73x = 12,372,248,978,367.13
  5. Step 5: Solve for x
    x = 12,372,248,978,367.13/4,679,844.73
  6. Step 6: Final answer
    x = 2,643,730.66

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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.