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Finding the Third Proportional to 763,398 and 1,658,340

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Solution

The third proportional to 763,398 and 1,658,340 is: 3,602,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,398 : 1,658,340 = 1,658,340 : x
  2. Step 2: Convert to fraction form
    763,398/1,658,340 = 1,658,340/x
  3. Step 3: Cross multiply
    763,398x = 1,658,340 × 1,658,340
  4. Step 4: Simplify right side
    763,398x = 2,750,091,555,600
  5. Step 5: Solve for x
    x = 2,750,091,555,600/763,398
  6. Step 6: Final answer
    x = 3,602,434.84

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.