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Finding the Fourth Proportional to 539,368.20, 809,376.30 and 223,792.20

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Solution

The fourth proportional to 539,368.20, 809,376.30 and 223,792.20 is: 335,822.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,368.20 : 809,376.30 = 223,792.20 : x
  2. Step 2: Convert to fraction form
    539,368.20/809,376.30 = 223,792.20/x
  3. Step 3: Cross multiply
    539,368.20x = 809,376.30 × 223,792.20
  4. Step 4: Simplify right side
    539,368.20x = 181,132,102,804.86
  5. Step 5: Solve for x
    x = 181,132,102,804.86/539,368.20
  6. Step 6: Final answer
    x = 335,822.73

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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.