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Finding the Fourth Proportional to 326,806.55, 488,704.89 and 310,863.32

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Solution

The fourth proportional to 326,806.55, 488,704.89 and 310,863.32 is: 464,863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,806.55 : 488,704.89 = 310,863.32 : x
  2. Step 2: Convert to fraction form
    326,806.55/488,704.89 = 310,863.32/x
  3. Step 3: Cross multiply
    326,806.55x = 488,704.89 × 310,863.32
  4. Step 4: Simplify right side
    326,806.55x = 151,920,424,605.64
  5. Step 5: Solve for x
    x = 151,920,424,605.64/326,806.55
  6. Step 6: Final answer
    x = 464,863.46

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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.