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Finding the Fourth Proportional to 894,390.80, 1,341,125.40 and 333,136.40

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Solution

The fourth proportional to 894,390.80, 1,341,125.40 and 333,136.40 is: 499,532.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,390.80 : 1,341,125.40 = 333,136.40 : x
  2. Step 2: Convert to fraction form
    894,390.80/1,341,125.40 = 333,136.40/x
  3. Step 3: Cross multiply
    894,390.80x = 1,341,125.40 × 333,136.40
  4. Step 4: Simplify right side
    894,390.80x = 446,777,687,704.56
  5. Step 5: Solve for x
    x = 446,777,687,704.56/894,390.80
  6. Step 6: Final answer
    x = 499,532.96

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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.