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Finding the Fourth Proportional to 567,039.40, 850,559.10 and 378,082.60

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Solution

The fourth proportional to 567,039.40, 850,559.10 and 378,082.60 is: 567,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,039.40 : 850,559.10 = 378,082.60 : x
  2. Step 2: Convert to fraction form
    567,039.40/850,559.10 = 378,082.60/x
  3. Step 3: Cross multiply
    567,039.40x = 850,559.10 × 378,082.60
  4. Step 4: Simplify right side
    567,039.40x = 321,581,595,981.66
  5. Step 5: Solve for x
    x = 321,581,595,981.66/567,039.40
  6. Step 6: Final answer
    x = 567,123.90

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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.