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Finding the Third Proportional to 718,320 and 1,571,261

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Solution

The third proportional to 718,320 and 1,571,261 is: 3,436,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,320 : 1,571,261 = 1,571,261 : x
  2. Step 2: Convert to fraction form
    718,320/1,571,261 = 1,571,261/x
  3. Step 3: Cross multiply
    718,320x = 1,571,261 × 1,571,261
  4. Step 4: Simplify right side
    718,320x = 2,468,861,130,121
  5. Step 5: Solve for x
    x = 2,468,861,130,121/718,320
  6. Step 6: Final answer
    x = 3,436,993.44

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.