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Finding the Third Proportional to 472,781.25 and 709,659

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Solution

The third proportional to 472,781.25 and 709,659 is: 1,065,219.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,781.25 : 709,659 = 709,659 : x
  2. Step 2: Convert to fraction form
    472,781.25/709,659 = 709,659/x
  3. Step 3: Cross multiply
    472,781.25x = 709,659 × 709,659
  4. Step 4: Simplify right side
    472,781.25x = 503,615,896,281
  5. Step 5: Solve for x
    x = 503,615,896,281/472,781.25
  6. Step 6: Final answer
    x = 1,065,219.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.