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Finding the Third Proportional to 991,143 and 1,575,328.50

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Solution

The third proportional to 991,143 and 1,575,328.50 is: 2,503,836.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,143 : 1,575,328.50 = 1,575,328.50 : x
  2. Step 2: Convert to fraction form
    991,143/1,575,328.50 = 1,575,328.50/x
  3. Step 3: Cross multiply
    991,143x = 1,575,328.50 × 1,575,328.50
  4. Step 4: Simplify right side
    991,143x = 2,481,659,882,912.25
  5. Step 5: Solve for x
    x = 2,481,659,882,912.25/991,143
  6. Step 6: Final answer
    x = 2,503,836.36

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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.