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Finding the Fourth Proportional to 603,602.50, 832,971.21 and 331,687.93

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Solution

The fourth proportional to 603,602.50, 832,971.21 and 331,687.93 is: 457,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,602.50 : 832,971.21 = 331,687.93 : x
  2. Step 2: Convert to fraction form
    603,602.50/832,971.21 = 331,687.93/x
  3. Step 3: Cross multiply
    603,602.50x = 832,971.21 × 331,687.93
  4. Step 4: Simplify right side
    603,602.50x = 276,286,496,495.80
  5. Step 5: Solve for x
    x = 276,286,496,495.80/603,602.50
  6. Step 6: Final answer
    x = 457,729.21

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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.