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Finding the Fourth Proportional to 580,722.46, 871,040.64 and 243,749.50

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Solution

The fourth proportional to 580,722.46, 871,040.64 and 243,749.50 is: 365,606.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,722.46 : 871,040.64 = 243,749.50 : x
  2. Step 2: Convert to fraction form
    580,722.46/871,040.64 = 243,749.50/x
  3. Step 3: Cross multiply
    580,722.46x = 871,040.64 × 243,749.50
  4. Step 4: Simplify right side
    580,722.46x = 212,315,722,744.65
  5. Step 5: Solve for x
    x = 212,315,722,744.65/580,722.46
  6. Step 6: Final answer
    x = 365,606.18

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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.