Home / 439,532.20-658,520.70-411,538.60

Finding the Fourth Proportional to 439,532.20, 658,520.70 and 411,538.60

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Solution

The fourth proportional to 439,532.20, 658,520.70 and 411,538.60 is: 616,579.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,532.20 : 658,520.70 = 411,538.60 : x
  2. Step 2: Convert to fraction form
    439,532.20/658,520.70 = 411,538.60/x
  3. Step 3: Cross multiply
    439,532.20x = 658,520.70 × 411,538.60
  4. Step 4: Simplify right side
    439,532.20x = 271,006,686,949.02
  5. Step 5: Solve for x
    x = 271,006,686,949.02/439,532.20
  6. Step 6: Final answer
    x = 616,579.82

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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.