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Finding the Fourth Proportional to 631,951.03, 871,991.61 and 360,024.31

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Solution

The fourth proportional to 631,951.03, 871,991.61 and 360,024.31 is: 496,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,951.03 : 871,991.61 = 360,024.31 : x
  2. Step 2: Convert to fraction form
    631,951.03/871,991.61 = 360,024.31/x
  3. Step 3: Cross multiply
    631,951.03x = 871,991.61 × 360,024.31
  4. Step 4: Simplify right side
    631,951.03x = 313,938,177,716.04
  5. Step 5: Solve for x
    x = 313,938,177,716.04/631,951.03
  6. Step 6: Final answer
    x = 496,776.12

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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.