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Finding the Fourth Proportional to 436,089.70, 654,134.55 and 341,611.30

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Solution

The fourth proportional to 436,089.70, 654,134.55 and 341,611.30 is: 512,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,089.70 : 654,134.55 = 341,611.30 : x
  2. Step 2: Convert to fraction form
    436,089.70/654,134.55 = 341,611.30/x
  3. Step 3: Cross multiply
    436,089.70x = 654,134.55 × 341,611.30
  4. Step 4: Simplify right side
    436,089.70x = 223,459,754,000.42
  5. Step 5: Solve for x
    x = 223,459,754,000.42/436,089.70
  6. Step 6: Final answer
    x = 512,416.95

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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.