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Finding the Fourth Proportional to 613,069.16, 919,593.09 and 275,871.21

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Solution

The fourth proportional to 613,069.16, 919,593.09 and 275,871.21 is: 413,802.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,069.16 : 919,593.09 = 275,871.21 : x
  2. Step 2: Convert to fraction form
    613,069.16/919,593.09 = 275,871.21/x
  3. Step 3: Cross multiply
    613,069.16x = 919,593.09 × 275,871.21
  4. Step 4: Simplify right side
    613,069.16x = 253,689,258,445.94
  5. Step 5: Solve for x
    x = 253,689,258,445.94/613,069.16
  6. Step 6: Final answer
    x = 413,802.03

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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.