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Finding the Fourth Proportional to 663,163.20, 994,744.80 and 605,102.40

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Solution

The fourth proportional to 663,163.20, 994,744.80 and 605,102.40 is: 907,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,163.20 : 994,744.80 = 605,102.40 : x
  2. Step 2: Convert to fraction form
    663,163.20/994,744.80 = 605,102.40/x
  3. Step 3: Cross multiply
    663,163.20x = 994,744.80 × 605,102.40
  4. Step 4: Simplify right side
    663,163.20x = 601,922,465,867.52
  5. Step 5: Solve for x
    x = 601,922,465,867.52/663,163.20
  6. Step 6: Final answer
    x = 907,653.60

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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.