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Finding the Fourth Proportional to 455,407.92, 683,185.32 and 171,120.60

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Solution

The fourth proportional to 455,407.92, 683,185.32 and 171,120.60 is: 256,708.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,407.92 : 683,185.32 = 171,120.60 : x
  2. Step 2: Convert to fraction form
    455,407.92/683,185.32 = 171,120.60/x
  3. Step 3: Cross multiply
    455,407.92x = 683,185.32 × 171,120.60
  4. Step 4: Simplify right side
    455,407.92x = 116,907,081,869.59
  5. Step 5: Solve for x
    x = 116,907,081,869.59/455,407.92
  6. Step 6: Final answer
    x = 256,708.50

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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.