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Finding the Fourth Proportional to 539,376.40, 809,161.80 and 223,865.20

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Solution

The fourth proportional to 539,376.40, 809,161.80 and 223,865.20 is: 335,838.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,376.40 : 809,161.80 = 223,865.20 : x
  2. Step 2: Convert to fraction form
    539,376.40/809,161.80 = 223,865.20/x
  3. Step 3: Cross multiply
    539,376.40x = 809,161.80 × 223,865.20
  4. Step 4: Simplify right side
    539,376.40x = 181,143,168,189.36
  5. Step 5: Solve for x
    x = 181,143,168,189.36/539,376.40
  6. Step 6: Final answer
    x = 335,838.14

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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.