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Finding the Fourth Proportional to 469,656.17, 648,125.75 and 254,796.18

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Solution

The fourth proportional to 469,656.17, 648,125.75 and 254,796.18 is: 351,618.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,656.17 : 648,125.75 = 254,796.18 : x
  2. Step 2: Convert to fraction form
    469,656.17/648,125.75 = 254,796.18/x
  3. Step 3: Cross multiply
    469,656.17x = 648,125.75 × 254,796.18
  4. Step 4: Simplify right side
    469,656.17x = 165,139,965,896.63
  5. Step 5: Solve for x
    x = 165,139,965,896.63/469,656.17
  6. Step 6: Final answer
    x = 351,618.86

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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.