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Finding the Fourth Proportional to 355,409.20, 534,280.20 and 250,951.60

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Solution

The fourth proportional to 355,409.20, 534,280.20 and 250,951.60 is: 377,250.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,409.20 : 534,280.20 = 250,951.60 : x
  2. Step 2: Convert to fraction form
    355,409.20/534,280.20 = 250,951.60/x
  3. Step 3: Cross multiply
    355,409.20x = 534,280.20 × 250,951.60
  4. Step 4: Simplify right side
    355,409.20x = 134,078,471,038.32
  5. Step 5: Solve for x
    x = 134,078,471,038.32/355,409.20
  6. Step 6: Final answer
    x = 377,250.99

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1.5x scale

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.