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Finding the Fourth Proportional to 619,093.80, 867,912.30 and 619,093.80

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Solution

The fourth proportional to 619,093.80, 867,912.30 and 619,093.80 is: 867,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,093.80 : 867,912.30 = 619,093.80 : x
  2. Step 2: Convert to fraction form
    619,093.80/867,912.30 = 619,093.80/x
  3. Step 3: Cross multiply
    619,093.80x = 867,912.30 × 619,093.80
  4. Step 4: Simplify right side
    619,093.80x = 537,319,123,873.74
  5. Step 5: Solve for x
    x = 537,319,123,873.74/619,093.80
  6. Step 6: Final answer
    x = 867,912.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.