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Finding the Fourth Proportional to 539,563.40, 808,697.10 and 223,857.80

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Solution

The fourth proportional to 539,563.40, 808,697.10 and 223,857.80 is: 335,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,563.40 : 808,697.10 = 223,857.80 : x
  2. Step 2: Convert to fraction form
    539,563.40/808,697.10 = 223,857.80/x
  3. Step 3: Cross multiply
    539,563.40x = 808,697.10 × 223,857.80
  4. Step 4: Simplify right side
    539,563.40x = 181,033,153,672.38
  5. Step 5: Solve for x
    x = 181,033,153,672.38/539,563.40
  6. Step 6: Final answer
    x = 335,517.85

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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.