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Finding the Fourth Proportional to 323,815.10, 446,854.34 and 178,620.54

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Solution

The fourth proportional to 323,815.10, 446,854.34 and 178,620.54 is: 246,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,815.10 : 446,854.34 = 178,620.54 : x
  2. Step 2: Convert to fraction form
    323,815.10/446,854.34 = 178,620.54/x
  3. Step 3: Cross multiply
    323,815.10x = 446,854.34 × 178,620.54
  4. Step 4: Simplify right side
    323,815.10x = 79,817,363,512.14
  5. Step 5: Solve for x
    x = 79,817,363,512.14/323,815.10
  6. Step 6: Final answer
    x = 246,490.55

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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.