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Finding the Fourth Proportional to 631,536.36, 871,494.57 and 345,066.36

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Solution

The fourth proportional to 631,536.36, 871,494.57 and 345,066.36 is: 476,177.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,536.36 : 871,494.57 = 345,066.36 : x
  2. Step 2: Convert to fraction form
    631,536.36/871,494.57 = 345,066.36/x
  3. Step 3: Cross multiply
    631,536.36x = 871,494.57 × 345,066.36
  4. Step 4: Simplify right side
    631,536.36x = 300,723,459,029.67
  5. Step 5: Solve for x
    x = 300,723,459,029.67/631,536.36
  6. Step 6: Final answer
    x = 476,177.59

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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.