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Finding the Third Proportional to 458,911 and 994,078

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Solution

The third proportional to 458,911 and 994,078 is: 2,153,339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,911 : 994,078 = 994,078 : x
  2. Step 2: Convert to fraction form
    458,911/994,078 = 994,078/x
  3. Step 3: Cross multiply
    458,911x = 994,078 × 994,078
  4. Step 4: Simplify right side
    458,911x = 988,191,070,084
  5. Step 5: Solve for x
    x = 988,191,070,084/458,911
  6. Step 6: Final answer
    x = 2,153,339.25

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.