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Finding the Fourth Proportional to 631,892.89, 871,799.38 and 359,768.33

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Solution

The fourth proportional to 631,892.89, 871,799.38 and 359,768.33 is: 496,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,892.89 : 871,799.38 = 359,768.33 : x
  2. Step 2: Convert to fraction form
    631,892.89/871,799.38 = 359,768.33/x
  3. Step 3: Cross multiply
    631,892.89x = 871,799.38 × 359,768.33
  4. Step 4: Simplify right side
    631,892.89x = 313,645,801,779.22
  5. Step 5: Solve for x
    x = 313,645,801,779.22/631,892.89
  6. Step 6: Final answer
    x = 496,359.13

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Double scale
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1.5x scale

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.