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Finding the Third Proportional to 637,263 and 1,390,464

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Solution

The third proportional to 637,263 and 1,390,464 is: 3,033,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,263 : 1,390,464 = 1,390,464 : x
  2. Step 2: Convert to fraction form
    637,263/1,390,464 = 1,390,464/x
  3. Step 3: Cross multiply
    637,263x = 1,390,464 × 1,390,464
  4. Step 4: Simplify right side
    637,263x = 1,933,390,135,296
  5. Step 5: Solve for x
    x = 1,933,390,135,296/637,263
  6. Step 6: Final answer
    x = 3,033,896.74

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.