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Finding the Fourth Proportional to 400,171.74, 551,696.58 and 256,682.67

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Solution

The fourth proportional to 400,171.74, 551,696.58 and 256,682.67 is: 353,875.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,171.74 : 551,696.58 = 256,682.67 : x
  2. Step 2: Convert to fraction form
    400,171.74/551,696.58 = 256,682.67/x
  3. Step 3: Cross multiply
    400,171.74x = 551,696.58 × 256,682.67
  4. Step 4: Simplify right side
    400,171.74x = 141,610,951,184.27
  5. Step 5: Solve for x
    x = 141,610,951,184.27/400,171.74
  6. Step 6: Final answer
    x = 353,875.44

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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.