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Finding the Fourth Proportional to 361,513.27, 542,651.51 and 353,370.39

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Solution

The fourth proportional to 361,513.27, 542,651.51 and 353,370.39 is: 530,428.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,513.27 : 542,651.51 = 353,370.39 : x
  2. Step 2: Convert to fraction form
    361,513.27/542,651.51 = 353,370.39/x
  3. Step 3: Cross multiply
    361,513.27x = 542,651.51 × 353,370.39
  4. Step 4: Simplify right side
    361,513.27x = 191,756,973,955.94
  5. Step 5: Solve for x
    x = 191,756,973,955.94/361,513.27
  6. Step 6: Final answer
    x = 530,428.59

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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.