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Finding the Fourth Proportional to 354,314.92, 530,880.60 and 248,945.20

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Solution

The fourth proportional to 354,314.92, 530,880.60 and 248,945.20 is: 373,002.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,314.92 : 530,880.60 = 248,945.20 : x
  2. Step 2: Convert to fraction form
    354,314.92/530,880.60 = 248,945.20/x
  3. Step 3: Cross multiply
    354,314.92x = 530,880.60 × 248,945.20
  4. Step 4: Simplify right side
    354,314.92x = 132,160,177,143.12
  5. Step 5: Solve for x
    x = 132,160,177,143.12/354,314.92
  6. Step 6: Final answer
    x = 373,002.01

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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.