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Finding the Fourth Proportional to 417,720.90, 576,465.27 and 226,733.88

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Solution

The fourth proportional to 417,720.90, 576,465.27 and 226,733.88 is: 312,898.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,720.90 : 576,465.27 = 226,733.88 : x
  2. Step 2: Convert to fraction form
    417,720.90/576,465.27 = 226,733.88/x
  3. Step 3: Cross multiply
    417,720.90x = 576,465.27 × 226,733.88
  4. Step 4: Simplify right side
    417,720.90x = 130,704,207,352.35
  5. Step 5: Solve for x
    x = 130,704,207,352.35/417,720.90
  6. Step 6: Final answer
    x = 312,898.41

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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.