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Finding the Fourth Proportional to 492,846.80, 739,097.40 and 256,110.80

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Solution

The fourth proportional to 492,846.80, 739,097.40 and 256,110.80 is: 384,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,846.80 : 739,097.40 = 256,110.80 : x
  2. Step 2: Convert to fraction form
    492,846.80/739,097.40 = 256,110.80/x
  3. Step 3: Cross multiply
    492,846.80x = 739,097.40 × 256,110.80
  4. Step 4: Simplify right side
    492,846.80x = 189,290,826,391.92
  5. Step 5: Solve for x
    x = 189,290,826,391.92/492,846.80
  6. Step 6: Final answer
    x = 384,076.40

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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.