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Finding the Fourth Proportional to 886,687.88, 1,223,630.69 and 504,714.69

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Solution

The fourth proportional to 886,687.88, 1,223,630.69 and 504,714.69 is: 696,507.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,687.88 : 1,223,630.69 = 504,714.69 : x
  2. Step 2: Convert to fraction form
    886,687.88/1,223,630.69 = 504,714.69/x
  3. Step 3: Cross multiply
    886,687.88x = 1,223,630.69 × 504,714.69
  4. Step 4: Simplify right side
    886,687.88x = 617,584,381,854.26
  5. Step 5: Solve for x
    x = 617,584,381,854.26/886,687.88
  6. Step 6: Final answer
    x = 696,507.08

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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.