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Finding the Fourth Proportional to 603,205.02, 832,389.90 and 331,308.54

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Solution

The fourth proportional to 603,205.02, 832,389.90 and 331,308.54 is: 457,187.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,205.02 : 832,389.90 = 331,308.54 : x
  2. Step 2: Convert to fraction form
    603,205.02/832,389.90 = 331,308.54/x
  3. Step 3: Cross multiply
    603,205.02x = 832,389.90 × 331,308.54
  4. Step 4: Simplify right side
    603,205.02x = 275,777,882,479.75
  5. Step 5: Solve for x
    x = 275,777,882,479.75/603,205.02
  6. Step 6: Final answer
    x = 457,187.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.