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Finding the Fourth Proportional to 886,768.13, 1,330,682.12 and 325,859.33

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Solution

The fourth proportional to 886,768.13, 1,330,682.12 and 325,859.33 is: 488,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,768.13 : 1,330,682.12 = 325,859.33 : x
  2. Step 2: Convert to fraction form
    886,768.13/1,330,682.12 = 325,859.33/x
  3. Step 3: Cross multiply
    886,768.13x = 1,330,682.12 × 325,859.33
  4. Step 4: Simplify right side
    886,768.13x = 433,615,184,066.18
  5. Step 5: Solve for x
    x = 433,615,184,066.18/886,768.13
  6. Step 6: Final answer
    x = 488,983.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.