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Finding the Fourth Proportional to 469,251.08, 647,569.80 and 254,394.50

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Solution

The fourth proportional to 469,251.08, 647,569.80 and 254,394.50 is: 351,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,251.08 : 647,569.80 = 254,394.50 : x
  2. Step 2: Convert to fraction form
    469,251.08/647,569.80 = 254,394.50/x
  3. Step 3: Cross multiply
    469,251.08x = 647,569.80 × 254,394.50
  4. Step 4: Simplify right side
    469,251.08x = 164,738,195,486.10
  5. Step 5: Solve for x
    x = 164,738,195,486.10/469,251.08
  6. Step 6: Final answer
    x = 351,066.20

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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.