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Finding the Fourth Proportional to 351,706.10, 485,352.75 and 190,561.10

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Solution

The fourth proportional to 351,706.10, 485,352.75 and 190,561.10 is: 262,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,706.10 : 485,352.75 = 190,561.10 : x
  2. Step 2: Convert to fraction form
    351,706.10/485,352.75 = 190,561.10/x
  3. Step 3: Cross multiply
    351,706.10x = 485,352.75 × 190,561.10
  4. Step 4: Simplify right side
    351,706.10x = 92,489,351,501.26
  5. Step 5: Solve for x
    x = 92,489,351,501.26/351,706.10
  6. Step 6: Final answer
    x = 262,973.41

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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.