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Finding the Fourth Proportional to 356,064.20, 534,096.30 and 343,622.60

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Solution

The fourth proportional to 356,064.20, 534,096.30 and 343,622.60 is: 515,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,064.20 : 534,096.30 = 343,622.60 : x
  2. Step 2: Convert to fraction form
    356,064.20/534,096.30 = 343,622.60/x
  3. Step 3: Cross multiply
    356,064.20x = 534,096.30 × 343,622.60
  4. Step 4: Simplify right side
    356,064.20x = 183,527,559,256.38
  5. Step 5: Solve for x
    x = 183,527,559,256.38/356,064.20
  6. Step 6: Final answer
    x = 515,433.90

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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.