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Finding the Fourth Proportional to 603,561.12, 832,986.76 and 361,976.60

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Solution

The fourth proportional to 603,561.12, 832,986.76 and 361,976.60 is: 499,571.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,561.12 : 832,986.76 = 361,976.60 : x
  2. Step 2: Convert to fraction form
    603,561.12/832,986.76 = 361,976.60/x
  3. Step 3: Cross multiply
    603,561.12x = 832,986.76 × 361,976.60
  4. Step 4: Simplify right side
    603,561.12x = 301,521,713,418.56
  5. Step 5: Solve for x
    x = 301,521,713,418.56/603,561.12
  6. Step 6: Final answer
    x = 499,571.13

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.