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Finding the Fourth Proportional to 603,348.60, 905,533.20 and 248,617.20

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Solution

The fourth proportional to 603,348.60, 905,533.20 and 248,617.20 is: 373,136.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,348.60 : 905,533.20 = 248,617.20 : x
  2. Step 2: Convert to fraction form
    603,348.60/905,533.20 = 248,617.20/x
  3. Step 3: Cross multiply
    603,348.60x = 905,533.20 × 248,617.20
  4. Step 4: Simplify right side
    603,348.60x = 225,131,128,691.04
  5. Step 5: Solve for x
    x = 225,131,128,691.04/603,348.60
  6. Step 6: Final answer
    x = 373,136.08

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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.