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Finding the Fourth Proportional to 603,896.40, 906,233.40 and 351,176.40

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Solution

The fourth proportional to 603,896.40, 906,233.40 and 351,176.40 is: 526,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,896.40 : 906,233.40 = 351,176.40 : x
  2. Step 2: Convert to fraction form
    603,896.40/906,233.40 = 351,176.40/x
  3. Step 3: Cross multiply
    603,896.40x = 906,233.40 × 351,176.40
  4. Step 4: Simplify right side
    603,896.40x = 318,247,782,971.76
  5. Step 5: Solve for x
    x = 318,247,782,971.76/603,896.40
  6. Step 6: Final answer
    x = 526,990.69

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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.