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Finding the Fourth Proportional to 289,920.90, 400,093.74 and 162,593.76

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Solution

The fourth proportional to 289,920.90, 400,093.74 and 162,593.76 is: 224,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,920.90 : 400,093.74 = 162,593.76 : x
  2. Step 2: Convert to fraction form
    289,920.90/400,093.74 = 162,593.76/x
  3. Step 3: Cross multiply
    289,920.90x = 400,093.74 × 162,593.76
  4. Step 4: Simplify right side
    289,920.90x = 65,052,745,539.06
  5. Step 5: Solve for x
    x = 65,052,745,539.06/289,920.90
  6. Step 6: Final answer
    x = 224,381.01

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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.