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Finding the Fourth Proportional to 539,101.20, 808,651.80 and 481,040.40

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Solution

The fourth proportional to 539,101.20, 808,651.80 and 481,040.40 is: 721,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,101.20 : 808,651.80 = 481,040.40 : x
  2. Step 2: Convert to fraction form
    539,101.20/808,651.80 = 481,040.40/x
  3. Step 3: Cross multiply
    539,101.20x = 808,651.80 × 481,040.40
  4. Step 4: Simplify right side
    539,101.20x = 388,994,185,332.72
  5. Step 5: Solve for x
    x = 388,994,185,332.72/539,101.20
  6. Step 6: Final answer
    x = 721,560.60

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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.