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Finding the Fourth Proportional to 469,257.52, 647,061.68 and 348,622.64

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Solution

The fourth proportional to 469,257.52, 647,061.68 and 348,622.64 is: 480,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,257.52 : 647,061.68 = 348,622.64 : x
  2. Step 2: Convert to fraction form
    469,257.52/647,061.68 = 348,622.64/x
  3. Step 3: Cross multiply
    469,257.52x = 647,061.68 × 348,622.64
  4. Step 4: Simplify right side
    469,257.52x = 225,580,351,124.44
  5. Step 5: Solve for x
    x = 225,580,351,124.44/469,257.52
  6. Step 6: Final answer
    x = 480,717.60

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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.