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Finding the Fourth Proportional to 451,188, 622,659.84 and 249,984

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Solution

The fourth proportional to 451,188, 622,659.84 and 249,984 is: 344,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,188 : 622,659.84 = 249,984 : x
  2. Step 2: Convert to fraction form
    451,188/622,659.84 = 249,984/x
  3. Step 3: Cross multiply
    451,188x = 622,659.84 × 249,984
  4. Step 4: Simplify right side
    451,188x = 155,654,997,442.56
  5. Step 5: Solve for x
    x = 155,654,997,442.56/451,188
  6. Step 6: Final answer
    x = 344,989.22

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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.