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Finding the Fourth Proportional to 422,565.12, 633,421.08 and 264,904.29

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Solution

The fourth proportional to 422,565.12, 633,421.08 and 264,904.29 is: 397,089.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,565.12 : 633,421.08 = 264,904.29 : x
  2. Step 2: Convert to fraction form
    422,565.12/633,421.08 = 264,904.29/x
  3. Step 3: Cross multiply
    422,565.12x = 633,421.08 × 264,904.29
  4. Step 4: Simplify right side
    422,565.12x = 167,795,961,468.43
  5. Step 5: Solve for x
    x = 167,795,961,468.43/422,565.12
  6. Step 6: Final answer
    x = 397,089.00

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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.