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Finding the Fourth Proportional to 886,659.88, 1,223,598.40 and 504,711.22

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Solution

The fourth proportional to 886,659.88, 1,223,598.40 and 504,711.22 is: 696,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,659.88 : 1,223,598.40 = 504,711.22 : x
  2. Step 2: Convert to fraction form
    886,659.88/1,223,598.40 = 504,711.22/x
  3. Step 3: Cross multiply
    886,659.88x = 1,223,598.40 × 504,711.22
  4. Step 4: Simplify right side
    886,659.88x = 617,563,841,254.05
  5. Step 5: Solve for x
    x = 617,563,841,254.05/886,659.88
  6. Step 6: Final answer
    x = 696,505.90

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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.