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Finding the Fourth Proportional to 455,150.40, 682,725.60 and 170,840.40

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Solution

The fourth proportional to 455,150.40, 682,725.60 and 170,840.40 is: 256,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,150.40 : 682,725.60 = 170,840.40 : x
  2. Step 2: Convert to fraction form
    455,150.40/682,725.60 = 170,840.40/x
  3. Step 3: Cross multiply
    455,150.40x = 682,725.60 × 170,840.40
  4. Step 4: Simplify right side
    455,150.40x = 116,637,114,594.24
  5. Step 5: Solve for x
    x = 116,637,114,594.24/455,150.40
  6. Step 6: Final answer
    x = 256,260.60

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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.