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Finding the Fourth Proportional to 283,557.89, 391,305.62 and 162,696.47

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Solution

The fourth proportional to 283,557.89, 391,305.62 and 162,696.47 is: 224,518.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,557.89 : 391,305.62 = 162,696.47 : x
  2. Step 2: Convert to fraction form
    283,557.89/391,305.62 = 162,696.47/x
  3. Step 3: Cross multiply
    283,557.89x = 391,305.62 × 162,696.47
  4. Step 4: Simplify right side
    283,557.89x = 63,664,040,295.15
  5. Step 5: Solve for x
    x = 63,664,040,295.15/283,557.89
  6. Step 6: Final answer
    x = 224,518.67

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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.