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Finding the Fourth Proportional to 539,356.31, 809,395.64 and 223,813.52

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Solution

The fourth proportional to 539,356.31, 809,395.64 and 223,813.52 is: 335,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,356.31 : 809,395.64 = 223,813.52 : x
  2. Step 2: Convert to fraction form
    539,356.31/809,395.64 = 223,813.52/x
  3. Step 3: Cross multiply
    539,356.31x = 809,395.64 × 223,813.52
  4. Step 4: Simplify right side
    539,356.31x = 181,153,682,095.01
  5. Step 5: Solve for x
    x = 181,153,682,095.01/539,356.31
  6. Step 6: Final answer
    x = 335,870.15

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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.