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Finding the Fourth Proportional to 361,428.52, 542,139.54 and 282,609.04

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Solution

The fourth proportional to 361,428.52, 542,139.54 and 282,609.04 is: 423,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,428.52 : 542,139.54 = 282,609.04 : x
  2. Step 2: Convert to fraction form
    361,428.52/542,139.54 = 282,609.04/x
  3. Step 3: Cross multiply
    361,428.52x = 542,139.54 × 282,609.04
  4. Step 4: Simplify right side
    361,428.52x = 153,213,534,945.44
  5. Step 5: Solve for x
    x = 153,213,534,945.44/361,428.52
  6. Step 6: Final answer
    x = 423,911.03

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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.