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Finding the Fourth Proportional to 606,986.20, 908,405.70 and 532,336.60

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Solution

The fourth proportional to 606,986.20, 908,405.70 and 532,336.60 is: 796,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,986.20 : 908,405.70 = 532,336.60 : x
  2. Step 2: Convert to fraction form
    606,986.20/908,405.70 = 532,336.60/x
  3. Step 3: Cross multiply
    606,986.20x = 908,405.70 × 532,336.60
  4. Step 4: Simplify right side
    606,986.20x = 483,577,601,758.62
  5. Step 5: Solve for x
    x = 483,577,601,758.62/606,986.20
  6. Step 6: Final answer
    x = 796,686.32

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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.