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Finding the Third Proportional to 815,347 and 1,918,460.50

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Solution

The third proportional to 815,347 and 1,918,460.50 is: 4,514,017.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,347 : 1,918,460.50 = 1,918,460.50 : x
  2. Step 2: Convert to fraction form
    815,347/1,918,460.50 = 1,918,460.50/x
  3. Step 3: Cross multiply
    815,347x = 1,918,460.50 × 1,918,460.50
  4. Step 4: Simplify right side
    815,347x = 3,680,490,690,060.25
  5. Step 5: Solve for x
    x = 3,680,490,690,060.25/815,347
  6. Step 6: Final answer
    x = 4,514,017.58

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.