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Finding the Fourth Proportional to 426,224.34, 638,801.91 and 226,050.66

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Solution

The fourth proportional to 426,224.34, 638,801.91 and 226,050.66 is: 338,792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,224.34 : 638,801.91 = 226,050.66 : x
  2. Step 2: Convert to fraction form
    426,224.34/638,801.91 = 226,050.66/x
  3. Step 3: Cross multiply
    426,224.34x = 638,801.91 × 226,050.66
  4. Step 4: Simplify right side
    426,224.34x = 144,401,593,364.76
  5. Step 5: Solve for x
    x = 144,401,593,364.76/426,224.34
  6. Step 6: Final answer
    x = 338,792.46

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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.