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Finding the Fourth Proportional to 541,420.16, 812,406.90 and 361,628.12

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Solution

The fourth proportional to 541,420.16, 812,406.90 and 361,628.12 is: 542,626.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,420.16 : 812,406.90 = 361,628.12 : x
  2. Step 2: Convert to fraction form
    541,420.16/812,406.90 = 361,628.12/x
  3. Step 3: Cross multiply
    541,420.16x = 812,406.90 × 361,628.12
  4. Step 4: Simplify right side
    541,420.16x = 293,789,179,922.03
  5. Step 5: Solve for x
    x = 293,789,179,922.03/541,420.16
  6. Step 6: Final answer
    x = 542,626.97

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1.5x scale

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.