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Finding the Fourth Proportional to 634,758.98, 951,507.74 and 318,249.86

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Solution

The fourth proportional to 634,758.98, 951,507.74 and 318,249.86 is: 477,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,758.98 : 951,507.74 = 318,249.86 : x
  2. Step 2: Convert to fraction form
    634,758.98/951,507.74 = 318,249.86/x
  3. Step 3: Cross multiply
    634,758.98x = 951,507.74 × 318,249.86
  4. Step 4: Simplify right side
    634,758.98x = 302,817,201,082.00
  5. Step 5: Solve for x
    x = 302,817,201,082.00/634,758.98
  6. Step 6: Final answer
    x = 477,058.56

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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.