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Finding the Fourth Proportional to 493,603.20, 740,404.80 and 294,148.80

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Solution

The fourth proportional to 493,603.20, 740,404.80 and 294,148.80 is: 441,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,603.20 : 740,404.80 = 294,148.80 : x
  2. Step 2: Convert to fraction form
    493,603.20/740,404.80 = 294,148.80/x
  3. Step 3: Cross multiply
    493,603.20x = 740,404.80 × 294,148.80
  4. Step 4: Simplify right side
    493,603.20x = 217,789,183,434.24
  5. Step 5: Solve for x
    x = 217,789,183,434.24/493,603.20
  6. Step 6: Final answer
    x = 441,223.20

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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.