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Finding the Fourth Proportional to 1,442,751, 1,991,088.54 and 806,847

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Solution

The fourth proportional to 1,442,751, 1,991,088.54 and 806,847 is: 1,113,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,751 : 1,991,088.54 = 806,847 : x
  2. Step 2: Convert to fraction form
    1,442,751/1,991,088.54 = 806,847/x
  3. Step 3: Cross multiply
    1,442,751x = 1,991,088.54 × 806,847
  4. Step 4: Simplify right side
    1,442,751x = 1,606,503,815,233.38
  5. Step 5: Solve for x
    x = 1,606,503,815,233.38/1,442,751
  6. Step 6: Final answer
    x = 1,113,500.40

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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.