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Finding the Third Proportional to 858,161 and 1,887,709

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Solution

The third proportional to 858,161 and 1,887,709 is: 4,152,420.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,161 : 1,887,709 = 1,887,709 : x
  2. Step 2: Convert to fraction form
    858,161/1,887,709 = 1,887,709/x
  3. Step 3: Cross multiply
    858,161x = 1,887,709 × 1,887,709
  4. Step 4: Simplify right side
    858,161x = 3,563,445,268,681
  5. Step 5: Solve for x
    x = 3,563,445,268,681/858,161
  6. Step 6: Final answer
    x = 4,152,420.43

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.