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Finding the Third Proportional to 716,839.88 and 1,516,719.94

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Solution

The third proportional to 716,839.88 and 1,516,719.94 is: 3,209,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,839.88 : 1,516,719.94 = 1,516,719.94 : x
  2. Step 2: Convert to fraction form
    716,839.88/1,516,719.94 = 1,516,719.94/x
  3. Step 3: Cross multiply
    716,839.88x = 1,516,719.94 × 1,516,719.94
  4. Step 4: Simplify right side
    716,839.88x = 2,300,439,368,810.00
  5. Step 5: Solve for x
    x = 2,300,439,368,810.00/716,839.88
  6. Step 6: Final answer
    x = 3,209,139.79

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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.