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Finding the Third Proportional to 1,015,831.13 and 1,392,959.53

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Solution

The third proportional to 1,015,831.13 and 1,392,959.53 is: 1,910,097.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,831.13 : 1,392,959.53 = 1,392,959.53 : x
  2. Step 2: Convert to fraction form
    1,015,831.13/1,392,959.53 = 1,392,959.53/x
  3. Step 3: Cross multiply
    1,015,831.13x = 1,392,959.53 × 1,392,959.53
  4. Step 4: Simplify right side
    1,015,831.13x = 1,940,336,255,700.22
  5. Step 5: Solve for x
    x = 1,940,336,255,700.22/1,015,831.13
  6. Step 6: Final answer
    x = 1,910,097.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.