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Finding the Fourth Proportional to 274,678.50, 412,020.32 and 97,215.60

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Solution

The fourth proportional to 274,678.50, 412,020.32 and 97,215.60 is: 145,824.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,678.50 : 412,020.32 = 97,215.60 : x
  2. Step 2: Convert to fraction form
    274,678.50/412,020.32 = 97,215.60/x
  3. Step 3: Cross multiply
    274,678.50x = 412,020.32 × 97,215.60
  4. Step 4: Simplify right side
    274,678.50x = 40,054,802,620.99
  5. Step 5: Solve for x
    x = 40,054,802,620.99/274,678.50
  6. Step 6: Final answer
    x = 145,824.31

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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.