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Finding the Fourth Proportional to 468,080.92, 645,951.09 and 253,220.50

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Solution

The fourth proportional to 468,080.92, 645,951.09 and 253,220.50 is: 349,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,080.92 : 645,951.09 = 253,220.50 : x
  2. Step 2: Convert to fraction form
    468,080.92/645,951.09 = 253,220.50/x
  3. Step 3: Cross multiply
    468,080.92x = 645,951.09 × 253,220.50
  4. Step 4: Simplify right side
    468,080.92x = 163,568,057,985.35
  5. Step 5: Solve for x
    x = 163,568,057,985.35/468,080.92
  6. Step 6: Final answer
    x = 349,443.98

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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.