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Finding the Fourth Proportional to 289,597.20, 433,812.60 and 164,792.40

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Solution

The fourth proportional to 289,597.20, 433,812.60 and 164,792.40 is: 246,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,597.20 : 433,812.60 = 164,792.40 : x
  2. Step 2: Convert to fraction form
    289,597.20/433,812.60 = 164,792.40/x
  3. Step 3: Cross multiply
    289,597.20x = 433,812.60 × 164,792.40
  4. Step 4: Simplify right side
    289,597.20x = 71,489,019,504.24
  5. Step 5: Solve for x
    x = 71,489,019,504.24/289,597.20
  6. Step 6: Final answer
    x = 246,856.74

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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.