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Finding the Fourth Proportional to 1,149,140, 1,723,710 and 361,172

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Solution

The fourth proportional to 1,149,140, 1,723,710 and 361,172 is: 541,758

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,140 : 1,723,710 = 361,172 : x
  2. Step 2: Convert to fraction form
    1,149,140/1,723,710 = 361,172/x
  3. Step 3: Cross multiply
    1,149,140x = 1,723,710 × 361,172
  4. Step 4: Simplify right side
    1,149,140x = 622,555,788,120
  5. Step 5: Solve for x
    x = 622,555,788,120/1,149,140
  6. Step 6: Final answer
    x = 541,758

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.