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Finding the Third Proportional to 774,977.50 and 1,642,146.50

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Solution

The third proportional to 774,977.50 and 1,642,146.50 is: 3,479,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,977.50 : 1,642,146.50 = 1,642,146.50 : x
  2. Step 2: Convert to fraction form
    774,977.50/1,642,146.50 = 1,642,146.50/x
  3. Step 3: Cross multiply
    774,977.50x = 1,642,146.50 × 1,642,146.50
  4. Step 4: Simplify right side
    774,977.50x = 2,696,645,127,462.25
  5. Step 5: Solve for x
    x = 2,696,645,127,462.25/774,977.50
  6. Step 6: Final answer
    x = 3,479,643.12

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.