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Finding the Fourth Proportional to 631,705.29, 871,751.88 and 359,773.17

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Solution

The fourth proportional to 631,705.29, 871,751.88 and 359,773.17 is: 496,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,705.29 : 871,751.88 = 359,773.17 : x
  2. Step 2: Convert to fraction form
    631,705.29/871,751.88 = 359,773.17/x
  3. Step 3: Cross multiply
    631,705.29x = 871,751.88 × 359,773.17
  4. Step 4: Simplify right side
    631,705.29x = 313,632,937,321.06
  5. Step 5: Solve for x
    x = 313,632,937,321.06/631,705.29
  6. Step 6: Final answer
    x = 496,486.17

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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.