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Finding the Fourth Proportional to 886,668, 1,223,609.61 and 504,719.34

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Solution

The fourth proportional to 886,668, 1,223,609.61 and 504,719.34 is: 696,517.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,668 : 1,223,609.61 = 504,719.34 : x
  2. Step 2: Convert to fraction form
    886,668/1,223,609.61 = 504,719.34/x
  3. Step 3: Cross multiply
    886,668x = 1,223,609.61 × 504,719.34
  4. Step 4: Simplify right side
    886,668x = 617,579,434,776.86
  5. Step 5: Solve for x
    x = 617,579,434,776.86/886,668
  6. Step 6: Final answer
    x = 696,517.11

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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.