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Finding the Fourth Proportional to 603,915.60, 833,312.22 and 331,995

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Solution

The fourth proportional to 603,915.60, 833,312.22 and 331,995 is: 458,102.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,915.60 : 833,312.22 = 331,995 : x
  2. Step 2: Convert to fraction form
    603,915.60/833,312.22 = 331,995/x
  3. Step 3: Cross multiply
    603,915.60x = 833,312.22 × 331,995
  4. Step 4: Simplify right side
    603,915.60x = 276,655,490,478.90
  5. Step 5: Solve for x
    x = 276,655,490,478.90/603,915.60
  6. Step 6: Final answer
    x = 458,102.90

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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.