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Finding the Fourth Proportional to 354,636.30, 531,954.45 and 344,794.80

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Solution

The fourth proportional to 354,636.30, 531,954.45 and 344,794.80 is: 517,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,636.30 : 531,954.45 = 344,794.80 : x
  2. Step 2: Convert to fraction form
    354,636.30/531,954.45 = 344,794.80/x
  3. Step 3: Cross multiply
    354,636.30x = 531,954.45 × 344,794.80
  4. Step 4: Simplify right side
    354,636.30x = 183,415,128,196.86
  5. Step 5: Solve for x
    x = 183,415,128,196.86/354,636.30
  6. Step 6: Final answer
    x = 517,192.20

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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.