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Finding the Fourth Proportional to 393,122.10, 589,683.15 and 362,709.30

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Solution

The fourth proportional to 393,122.10, 589,683.15 and 362,709.30 is: 544,063.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,122.10 : 589,683.15 = 362,709.30 : x
  2. Step 2: Convert to fraction form
    393,122.10/589,683.15 = 362,709.30/x
  3. Step 3: Cross multiply
    393,122.10x = 589,683.15 × 362,709.30
  4. Step 4: Simplify right side
    393,122.10x = 213,883,562,558.30
  5. Step 5: Solve for x
    x = 213,883,562,558.30/393,122.10
  6. Step 6: Final answer
    x = 544,063.95

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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.