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Finding the Third Proportional to 387,127 and 835,484

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Solution

The third proportional to 387,127 and 835,484 is: 1,803,112.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,127 : 835,484 = 835,484 : x
  2. Step 2: Convert to fraction form
    387,127/835,484 = 835,484/x
  3. Step 3: Cross multiply
    387,127x = 835,484 × 835,484
  4. Step 4: Simplify right side
    387,127x = 698,033,514,256
  5. Step 5: Solve for x
    x = 698,033,514,256/387,127
  6. Step 6: Final answer
    x = 1,803,112.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.