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Finding the Fourth Proportional to 401,160.96, 553,608.18 and 219,871.44

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Solution

The fourth proportional to 401,160.96, 553,608.18 and 219,871.44 is: 303,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,160.96 : 553,608.18 = 219,871.44 : x
  2. Step 2: Convert to fraction form
    401,160.96/553,608.18 = 219,871.44/x
  3. Step 3: Cross multiply
    401,160.96x = 553,608.18 × 219,871.44
  4. Step 4: Simplify right side
    401,160.96x = 121,722,627,732.38
  5. Step 5: Solve for x
    x = 121,722,627,732.38/401,160.96
  6. Step 6: Final answer
    x = 303,425.91

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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.