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Finding the Fourth Proportional to 289,481.04, 434,036.88 and 171,188.64

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Solution

The fourth proportional to 289,481.04, 434,036.88 and 171,188.64 is: 256,673.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,481.04 : 434,036.88 = 171,188.64 : x
  2. Step 2: Convert to fraction form
    289,481.04/434,036.88 = 171,188.64/x
  3. Step 3: Cross multiply
    289,481.04x = 434,036.88 × 171,188.64
  4. Step 4: Simplify right side
    289,481.04x = 74,302,183,197.04
  5. Step 5: Solve for x
    x = 74,302,183,197.04/289,481.04
  6. Step 6: Final answer
    x = 256,673.75

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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.