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Finding the Fourth Proportional to 354,885.82, 531,885.74 and 177,443.58

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Solution

The fourth proportional to 354,885.82, 531,885.74 and 177,443.58 is: 265,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,885.82 : 531,885.74 = 177,443.58 : x
  2. Step 2: Convert to fraction form
    354,885.82/531,885.74 = 177,443.58/x
  3. Step 3: Cross multiply
    354,885.82x = 531,885.74 × 177,443.58
  4. Step 4: Simplify right side
    354,885.82x = 94,379,709,856.55
  5. Step 5: Solve for x
    x = 94,379,709,856.55/354,885.82
  6. Step 6: Final answer
    x = 265,943.87

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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.