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Finding the Fourth Proportional to 522,369.72, 721,023.29 and 341,109.80

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Solution

The fourth proportional to 522,369.72, 721,023.29 and 341,109.80 is: 470,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,369.72 : 721,023.29 = 341,109.80 : x
  2. Step 2: Convert to fraction form
    522,369.72/721,023.29 = 341,109.80/x
  3. Step 3: Cross multiply
    522,369.72x = 721,023.29 × 341,109.80
  4. Step 4: Simplify right side
    522,369.72x = 245,948,104,936.58
  5. Step 5: Solve for x
    x = 245,948,104,936.58/522,369.72
  6. Step 6: Final answer
    x = 470,831.47

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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.