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Finding the Fourth Proportional to 455,193.40, 682,790.10 and 170,883.40

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Solution

The fourth proportional to 455,193.40, 682,790.10 and 170,883.40 is: 256,325.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,193.40 : 682,790.10 = 170,883.40 : x
  2. Step 2: Convert to fraction form
    455,193.40/682,790.10 = 170,883.40/x
  3. Step 3: Cross multiply
    455,193.40x = 682,790.10 × 170,883.40
  4. Step 4: Simplify right side
    455,193.40x = 116,677,493,774.34
  5. Step 5: Solve for x
    x = 116,677,493,774.34/455,193.40
  6. Step 6: Final answer
    x = 256,325.10

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Double scale
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Similar ratio
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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.