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Finding the Fourth Proportional to 606,912.60, 911,117.70 and 382,272.60

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Solution

The fourth proportional to 606,912.60, 911,117.70 and 382,272.60 is: 573,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,912.60 : 911,117.70 = 382,272.60 : x
  2. Step 2: Convert to fraction form
    606,912.60/911,117.70 = 382,272.60/x
  3. Step 3: Cross multiply
    606,912.60x = 911,117.70 × 382,272.60
  4. Step 4: Simplify right side
    606,912.60x = 348,295,332,085.02
  5. Step 5: Solve for x
    x = 348,295,332,085.02/606,912.60
  6. Step 6: Final answer
    x = 573,880.54

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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.