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Finding the Fourth Proportional to 617,824.26, 852,344.10 and 375,912.90

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Solution

The fourth proportional to 617,824.26, 852,344.10 and 375,912.90 is: 518,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,824.26 : 852,344.10 = 375,912.90 : x
  2. Step 2: Convert to fraction form
    617,824.26/852,344.10 = 375,912.90/x
  3. Step 3: Cross multiply
    617,824.26x = 852,344.10 × 375,912.90
  4. Step 4: Simplify right side
    617,824.26x = 320,407,142,428.89
  5. Step 5: Solve for x
    x = 320,407,142,428.89/617,824.26
  6. Step 6: Final answer
    x = 518,605.63

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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.