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Finding the Fourth Proportional to 539,402.80, 808,812.60 and 223,891.60

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Solution

The fourth proportional to 539,402.80, 808,812.60 and 223,891.60 is: 335,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,402.80 : 808,812.60 = 223,891.60 : x
  2. Step 2: Convert to fraction form
    539,402.80/808,812.60 = 223,891.60/x
  3. Step 3: Cross multiply
    539,402.80x = 808,812.60 × 223,891.60
  4. Step 4: Simplify right side
    539,402.80x = 181,086,347,114.16
  5. Step 5: Solve for x
    x = 181,086,347,114.16/539,402.80
  6. Step 6: Final answer
    x = 335,716.36

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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.