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Finding the Fourth Proportional to 992,694.72, 1,488,477.12 and 677,533.44

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Solution

The fourth proportional to 992,694.72, 1,488,477.12 and 677,533.44 is: 1,015,914.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,694.72 : 1,488,477.12 = 677,533.44 : x
  2. Step 2: Convert to fraction form
    992,694.72/1,488,477.12 = 677,533.44/x
  3. Step 3: Cross multiply
    992,694.72x = 1,488,477.12 × 677,533.44
  4. Step 4: Simplify right side
    992,694.72x = 1,008,493,023,474.89
  5. Step 5: Solve for x
    x = 1,008,493,023,474.89/992,694.72
  6. Step 6: Final answer
    x = 1,015,914.56

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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.