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Finding the Fourth Proportional to 604,321.60, 905,704.80 and 367,412.80

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Solution

The fourth proportional to 604,321.60, 905,704.80 and 367,412.80 is: 550,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,321.60 : 905,704.80 = 367,412.80 : x
  2. Step 2: Convert to fraction form
    604,321.60/905,704.80 = 367,412.80/x
  3. Step 3: Cross multiply
    604,321.60x = 905,704.80 × 367,412.80
  4. Step 4: Simplify right side
    604,321.60x = 332,767,536,541.44
  5. Step 5: Solve for x
    x = 332,767,536,541.44/604,321.60
  6. Step 6: Final answer
    x = 550,646.44

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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.