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Finding the Fourth Proportional to 617,866.97, 852,583.50 and 356,219.34

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Solution

The fourth proportional to 617,866.97, 852,583.50 and 356,219.34 is: 491,540.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,866.97 : 852,583.50 = 356,219.34 : x
  2. Step 2: Convert to fraction form
    617,866.97/852,583.50 = 356,219.34/x
  3. Step 3: Cross multiply
    617,866.97x = 852,583.50 × 356,219.34
  4. Step 4: Simplify right side
    617,866.97x = 303,706,731,664.89
  5. Step 5: Solve for x
    x = 303,706,731,664.89/617,866.97
  6. Step 6: Final answer
    x = 491,540.65

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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.