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Finding the Fourth Proportional to 612,670.32, 845,249.04 and 451,906.38

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Solution

The fourth proportional to 612,670.32, 845,249.04 and 451,906.38 is: 623,456.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,670.32 : 845,249.04 = 451,906.38 : x
  2. Step 2: Convert to fraction form
    612,670.32/845,249.04 = 451,906.38/x
  3. Step 3: Cross multiply
    612,670.32x = 845,249.04 × 451,906.38
  4. Step 4: Simplify right side
    612,670.32x = 381,973,433,864.88
  5. Step 5: Solve for x
    x = 381,973,433,864.88/612,670.32
  6. Step 6: Final answer
    x = 623,456.73

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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.