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Finding the Fourth Proportional to 428,111.21, 590,803.03 and 244,346.11

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Solution

The fourth proportional to 428,111.21, 590,803.03 and 244,346.11 is: 337,203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,111.21 : 590,803.03 = 244,346.11 : x
  2. Step 2: Convert to fraction form
    428,111.21/590,803.03 = 244,346.11/x
  3. Step 3: Cross multiply
    428,111.21x = 590,803.03 × 244,346.11
  4. Step 4: Simplify right side
    428,111.21x = 144,360,419,202.70
  5. Step 5: Solve for x
    x = 144,360,419,202.70/428,111.21
  6. Step 6: Final answer
    x = 337,203.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.