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Finding the Fourth Proportional to 469,930.62, 648,504.98 and 255,070.74

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Solution

The fourth proportional to 469,930.62, 648,504.98 and 255,070.74 is: 351,998.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,930.62 : 648,504.98 = 255,070.74 : x
  2. Step 2: Convert to fraction form
    469,930.62/648,504.98 = 255,070.74/x
  3. Step 3: Cross multiply
    469,930.62x = 648,504.98 × 255,070.74
  4. Step 4: Simplify right side
    469,930.62x = 165,414,645,142.29
  5. Step 5: Solve for x
    x = 165,414,645,142.29/469,930.62
  6. Step 6: Final answer
    x = 351,998.01

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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.