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Finding the Fourth Proportional to 539,150.80, 808,434.60 and 223,639.60

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Solution

The fourth proportional to 539,150.80, 808,434.60 and 223,639.60 is: 335,338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,150.80 : 808,434.60 = 223,639.60 : x
  2. Step 2: Convert to fraction form
    539,150.80/808,434.60 = 223,639.60/x
  3. Step 3: Cross multiply
    539,150.80x = 808,434.60 × 223,639.60
  4. Step 4: Simplify right side
    539,150.80x = 180,797,990,570.16
  5. Step 5: Solve for x
    x = 180,797,990,570.16/539,150.80
  6. Step 6: Final answer
    x = 335,338.44

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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.