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Finding the Fourth Proportional to 292,708.80, 439,581.60 and 226,310.40

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Solution

The fourth proportional to 292,708.80, 439,581.60 and 226,310.40 is: 339,866.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,708.80 : 439,581.60 = 226,310.40 : x
  2. Step 2: Convert to fraction form
    292,708.80/439,581.60 = 226,310.40/x
  3. Step 3: Cross multiply
    292,708.80x = 439,581.60 × 226,310.40
  4. Step 4: Simplify right side
    292,708.80x = 99,481,887,728.64
  5. Step 5: Solve for x
    x = 99,481,887,728.64/292,708.80
  6. Step 6: Final answer
    x = 339,866.41

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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.