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Finding the Fourth Proportional to 541,151.96, 812,008.04 and 392,618.21

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Solution

The fourth proportional to 541,151.96, 812,008.04 and 392,618.21 is: 589,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,151.96 : 812,008.04 = 392,618.21 : x
  2. Step 2: Convert to fraction form
    541,151.96/812,008.04 = 392,618.21/x
  3. Step 3: Cross multiply
    541,151.96x = 812,008.04 × 392,618.21
  4. Step 4: Simplify right side
    541,151.96x = 318,809,146,207.07
  5. Step 5: Solve for x
    x = 318,809,146,207.07/541,151.96
  6. Step 6: Final answer
    x = 589,130.54

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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.