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Finding the Fourth Proportional to 501,940.80, 752,911.20 and 169,516.80

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Solution

The fourth proportional to 501,940.80, 752,911.20 and 169,516.80 is: 254,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,940.80 : 752,911.20 = 169,516.80 : x
  2. Step 2: Convert to fraction form
    501,940.80/752,911.20 = 169,516.80/x
  3. Step 3: Cross multiply
    501,940.80x = 752,911.20 × 169,516.80
  4. Step 4: Simplify right side
    501,940.80x = 127,631,097,308.16
  5. Step 5: Solve for x
    x = 127,631,097,308.16/501,940.80
  6. Step 6: Final answer
    x = 254,275.20

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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.