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Finding the Fourth Proportional to 1,168,326, 1,612,289.97 and 631,782

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Solution

The fourth proportional to 1,168,326, 1,612,289.97 and 631,782 is: 871,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,326 : 1,612,289.97 = 631,782 : x
  2. Step 2: Convert to fraction form
    1,168,326/1,612,289.97 = 631,782/x
  3. Step 3: Cross multiply
    1,168,326x = 1,612,289.97 × 631,782
  4. Step 4: Simplify right side
    1,168,326x = 1,018,615,781,826.54
  5. Step 5: Solve for x
    x = 1,018,615,781,826.54/1,168,326
  6. Step 6: Final answer
    x = 871,859.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.