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Finding the Third Proportional to 549,990 and 875,151

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Solution

The third proportional to 549,990 and 875,151 is: 1,392,551.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,990 : 875,151 = 875,151 : x
  2. Step 2: Convert to fraction form
    549,990/875,151 = 875,151/x
  3. Step 3: Cross multiply
    549,990x = 875,151 × 875,151
  4. Step 4: Simplify right side
    549,990x = 765,889,272,801
  5. Step 5: Solve for x
    x = 765,889,272,801/549,990
  6. Step 6: Final answer
    x = 1,392,551.27

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.