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Finding the Fourth Proportional to 625,781.04, 863,524.44 and 353,835.60

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Solution

The fourth proportional to 625,781.04, 863,524.44 and 353,835.60 is: 488,262.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,781.04 : 863,524.44 = 353,835.60 : x
  2. Step 2: Convert to fraction form
    625,781.04/863,524.44 = 353,835.60/x
  3. Step 3: Cross multiply
    625,781.04x = 863,524.44 × 353,835.60
  4. Step 4: Simplify right side
    625,781.04x = 305,545,688,342.06
  5. Step 5: Solve for x
    x = 305,545,688,342.06/625,781.04
  6. Step 6: Final answer
    x = 488,262.94

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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.