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Finding the Fourth Proportional to 585,853.52, 808,512.72 and 331,228.40

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Solution

The fourth proportional to 585,853.52, 808,512.72 and 331,228.40 is: 457,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,853.52 : 808,512.72 = 331,228.40 : x
  2. Step 2: Convert to fraction form
    585,853.52/808,512.72 = 331,228.40/x
  3. Step 3: Cross multiply
    585,853.52x = 808,512.72 × 331,228.40
  4. Step 4: Simplify right side
    585,853.52x = 267,802,374,625.25
  5. Step 5: Solve for x
    x = 267,802,374,625.25/585,853.52
  6. Step 6: Final answer
    x = 457,114.90

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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.