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Finding the Fourth Proportional to 345,236.16, 476,696.16 and 269,999.04

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Solution

The fourth proportional to 345,236.16, 476,696.16 and 269,999.04 is: 372,810.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,236.16 : 476,696.16 = 269,999.04 : x
  2. Step 2: Convert to fraction form
    345,236.16/476,696.16 = 269,999.04/x
  3. Step 3: Cross multiply
    345,236.16x = 476,696.16 × 269,999.04
  4. Step 4: Simplify right side
    345,236.16x = 128,707,505,571.69
  5. Step 5: Solve for x
    x = 128,707,505,571.69/345,236.16
  6. Step 6: Final answer
    x = 372,810.04

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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.