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Finding the Fourth Proportional to 992,706.72, 1,488,495.12 and 677,545.44

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Solution

The fourth proportional to 992,706.72, 1,488,495.12 and 677,545.44 is: 1,015,932.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,706.72 : 1,488,495.12 = 677,545.44 : x
  2. Step 2: Convert to fraction form
    992,706.72/1,488,495.12 = 677,545.44/x
  3. Step 3: Cross multiply
    992,706.72x = 1,488,495.12 × 677,545.44
  4. Step 4: Simplify right side
    992,706.72x = 1,008,523,081,018.25
  5. Step 5: Solve for x
    x = 1,008,523,081,018.25/992,706.72
  6. Step 6: Final answer
    x = 1,015,932.56

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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.