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Finding the Third Proportional to 712,779.75 and 1,551,042

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Solution

The third proportional to 712,779.75 and 1,551,042 is: 3,375,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,779.75 : 1,551,042 = 1,551,042 : x
  2. Step 2: Convert to fraction form
    712,779.75/1,551,042 = 1,551,042/x
  3. Step 3: Cross multiply
    712,779.75x = 1,551,042 × 1,551,042
  4. Step 4: Simplify right side
    712,779.75x = 2,405,731,285,764
  5. Step 5: Solve for x
    x = 2,405,731,285,764/712,779.75
  6. Step 6: Final answer
    x = 3,375,139.78

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.