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Finding the Fourth Proportional to 541,160.12, 812,020.28 and 392,626.37

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Solution

The fourth proportional to 541,160.12, 812,020.28 and 392,626.37 is: 589,142.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,160.12 : 812,020.28 = 392,626.37 : x
  2. Step 2: Convert to fraction form
    541,160.12/812,020.28 = 392,626.37/x
  3. Step 3: Cross multiply
    541,160.12x = 812,020.28 × 392,626.37
  4. Step 4: Simplify right side
    541,160.12x = 318,820,574,969.70
  5. Step 5: Solve for x
    x = 318,820,574,969.70/541,160.12
  6. Step 6: Final answer
    x = 589,142.77

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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.