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Finding the Fourth Proportional to 289,544.92, 399,588.33 and 162,261.52

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Solution

The fourth proportional to 289,544.92, 399,588.33 and 162,261.52 is: 223,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,544.92 : 399,588.33 = 162,261.52 : x
  2. Step 2: Convert to fraction form
    289,544.92/399,588.33 = 162,261.52/x
  3. Step 3: Cross multiply
    289,544.92x = 399,588.33 × 162,261.52
  4. Step 4: Simplify right side
    289,544.92x = 64,837,809,800.06
  5. Step 5: Solve for x
    x = 64,837,809,800.06/289,544.92
  6. Step 6: Final answer
    x = 223,930.05

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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.