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Finding the Fourth Proportional to 541,168.40, 812,032.72 and 392,634.66

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Solution

The fourth proportional to 541,168.40, 812,032.72 and 392,634.66 is: 589,155.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,168.40 : 812,032.72 = 392,634.66 : x
  2. Step 2: Convert to fraction form
    541,168.40/812,032.72 = 392,634.66/x
  3. Step 3: Cross multiply
    541,168.40x = 812,032.72 × 392,634.66
  4. Step 4: Simplify right side
    541,168.40x = 318,832,190,926.08
  5. Step 5: Solve for x
    x = 318,832,190,926.08/541,168.40
  6. Step 6: Final answer
    x = 589,155.23

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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.