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Finding the Fourth Proportional to 682,912.40, 1,024,061.40 and 262,048.40

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Solution

The fourth proportional to 682,912.40, 1,024,061.40 and 262,048.40 is: 392,954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,912.40 : 1,024,061.40 = 262,048.40 : x
  2. Step 2: Convert to fraction form
    682,912.40/1,024,061.40 = 262,048.40/x
  3. Step 3: Cross multiply
    682,912.40x = 1,024,061.40 × 262,048.40
  4. Step 4: Simplify right side
    682,912.40x = 268,353,651,371.76
  5. Step 5: Solve for x
    x = 268,353,651,371.76/682,912.40
  6. Step 6: Final answer
    x = 392,954.72

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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.