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Finding the Fourth Proportional to 539,363.85, 809,406.90 and 223,821.06

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Solution

The fourth proportional to 539,363.85, 809,406.90 and 223,821.06 is: 335,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,363.85 : 809,406.90 = 223,821.06 : x
  2. Step 2: Convert to fraction form
    539,363.85/809,406.90 = 223,821.06/x
  3. Step 3: Cross multiply
    539,363.85x = 809,406.90 × 223,821.06
  4. Step 4: Simplify right side
    539,363.85x = 181,162,310,329.31
  5. Step 5: Solve for x
    x = 181,162,310,329.31/539,363.85
  6. Step 6: Final answer
    x = 335,881.45

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Similar ratio
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1.5x scale

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.