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Finding the Fourth Proportional to 700,842.60, 1,051,351.50 and 274,323.38

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Solution

The fourth proportional to 700,842.60, 1,051,351.50 and 274,323.38 is: 411,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,842.60 : 1,051,351.50 = 274,323.38 : x
  2. Step 2: Convert to fraction form
    700,842.60/1,051,351.50 = 274,323.38/x
  3. Step 3: Cross multiply
    700,842.60x = 1,051,351.50 × 274,323.38
  4. Step 4: Simplify right side
    700,842.60x = 288,410,300,147.73
  5. Step 5: Solve for x
    x = 288,410,300,147.73/700,842.60
  6. Step 6: Final answer
    x = 411,519.36

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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.