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Finding the Fourth Proportional to 463,476, 639,596.88 and 251,508

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Solution

The fourth proportional to 463,476, 639,596.88 and 251,508 is: 347,081.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,476 : 639,596.88 = 251,508 : x
  2. Step 2: Convert to fraction form
    463,476/639,596.88 = 251,508/x
  3. Step 3: Cross multiply
    463,476x = 639,596.88 × 251,508
  4. Step 4: Simplify right side
    463,476x = 160,863,732,095.04
  5. Step 5: Solve for x
    x = 160,863,732,095.04/463,476
  6. Step 6: Final answer
    x = 347,081.04

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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.