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Finding the Fourth Proportional to 368,896.32, 508,736.16 and 273,640.32

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Solution

The fourth proportional to 368,896.32, 508,736.16 and 273,640.32 is: 377,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,896.32 : 508,736.16 = 273,640.32 : x
  2. Step 2: Convert to fraction form
    368,896.32/508,736.16 = 273,640.32/x
  3. Step 3: Cross multiply
    368,896.32x = 508,736.16 × 273,640.32
  4. Step 4: Simplify right side
    368,896.32x = 139,210,725,617.97
  5. Step 5: Solve for x
    x = 139,210,725,617.97/368,896.32
  6. Step 6: Final answer
    x = 377,370.87

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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.