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Finding the Fourth Proportional to 463,394.08, 639,583.59 and 282,165.94

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Solution

The fourth proportional to 463,394.08, 639,583.59 and 282,165.94 is: 389,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,394.08 : 639,583.59 = 282,165.94 : x
  2. Step 2: Convert to fraction form
    463,394.08/639,583.59 = 282,165.94/x
  3. Step 3: Cross multiply
    463,394.08x = 639,583.59 × 282,165.94
  4. Step 4: Simplify right side
    463,394.08x = 180,468,704,880.93
  5. Step 5: Solve for x
    x = 180,468,704,880.93/463,394.08
  6. Step 6: Final answer
    x = 389,449.74

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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.