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Finding the Fourth Proportional to 590,938.40, 886,695.60 and 275,232.80

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Solution

The fourth proportional to 590,938.40, 886,695.60 and 275,232.80 is: 412,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,938.40 : 886,695.60 = 275,232.80 : x
  2. Step 2: Convert to fraction form
    590,938.40/886,695.60 = 275,232.80/x
  3. Step 3: Cross multiply
    590,938.40x = 886,695.60 × 275,232.80
  4. Step 4: Simplify right side
    590,938.40x = 244,047,712,735.68
  5. Step 5: Solve for x
    x = 244,047,712,735.68/590,938.40
  6. Step 6: Final answer
    x = 412,983.34

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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.