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Finding the Fourth Proportional to 490,216.50, 735,324.76 and 157,792.50

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Solution

The fourth proportional to 490,216.50, 735,324.76 and 157,792.50 is: 236,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,216.50 : 735,324.76 = 157,792.50 : x
  2. Step 2: Convert to fraction form
    490,216.50/735,324.76 = 157,792.50/x
  3. Step 3: Cross multiply
    490,216.50x = 735,324.76 × 157,792.50
  4. Step 4: Simplify right side
    490,216.50x = 116,028,732,192.30
  5. Step 5: Solve for x
    x = 116,028,732,192.30/490,216.50
  6. Step 6: Final answer
    x = 236,688.75

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Similar ratio
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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.