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Finding the Fourth Proportional to 588,221.40, 881,640.90 and 251,261.40

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Solution

The fourth proportional to 588,221.40, 881,640.90 and 251,261.40 is: 376,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,221.40 : 881,640.90 = 251,261.40 : x
  2. Step 2: Convert to fraction form
    588,221.40/881,640.90 = 251,261.40/x
  3. Step 3: Cross multiply
    588,221.40x = 881,640.90 × 251,261.40
  4. Step 4: Simplify right side
    588,221.40x = 221,522,326,831.26
  5. Step 5: Solve for x
    x = 221,522,326,831.26/588,221.40
  6. Step 6: Final answer
    x = 376,596.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.