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Finding the Fourth Proportional to 352,114.32, 485,283.24 and 256,469.52

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Solution

The fourth proportional to 352,114.32, 485,283.24 and 256,469.52 is: 353,465.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,114.32 : 485,283.24 = 256,469.52 : x
  2. Step 2: Convert to fraction form
    352,114.32/485,283.24 = 256,469.52/x
  3. Step 3: Cross multiply
    352,114.32x = 485,283.24 × 256,469.52
  4. Step 4: Simplify right side
    352,114.32x = 124,460,359,626.85
  5. Step 5: Solve for x
    x = 124,460,359,626.85/352,114.32
  6. Step 6: Final answer
    x = 353,465.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.