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Finding the Fourth Proportional to 613,105.23, 919,720.56 and 234,344.78

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Solution

The fourth proportional to 613,105.23, 919,720.56 and 234,344.78 is: 351,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,105.23 : 919,720.56 = 234,344.78 : x
  2. Step 2: Convert to fraction form
    613,105.23/919,720.56 = 234,344.78/x
  3. Step 3: Cross multiply
    613,105.23x = 919,720.56 × 234,344.78
  4. Step 4: Simplify right side
    613,105.23x = 215,531,707,696.07
  5. Step 5: Solve for x
    x = 215,531,707,696.07/613,105.23
  6. Step 6: Final answer
    x = 351,541.13

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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.