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Finding the Fourth Proportional to 603,366.61, 832,651.28 and 331,440.03

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Solution

The fourth proportional to 603,366.61, 832,651.28 and 331,440.03 is: 457,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,366.61 : 832,651.28 = 331,440.03 : x
  2. Step 2: Convert to fraction form
    603,366.61/832,651.28 = 331,440.03/x
  3. Step 3: Cross multiply
    603,366.61x = 832,651.28 × 331,440.03
  4. Step 4: Simplify right side
    603,366.61x = 275,973,965,222.74
  5. Step 5: Solve for x
    x = 275,973,965,222.74/603,366.61
  6. Step 6: Final answer
    x = 457,390.18

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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.