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Finding the Fourth Proportional to 312,668.10, 468,892.80 and 162,858.60

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Solution

The fourth proportional to 312,668.10, 468,892.80 and 162,858.60 is: 244,230.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,668.10 : 468,892.80 = 162,858.60 : x
  2. Step 2: Convert to fraction form
    312,668.10/468,892.80 = 162,858.60/x
  3. Step 3: Cross multiply
    312,668.10x = 468,892.80 × 162,858.60
  4. Step 4: Simplify right side
    312,668.10x = 76,363,224,958.08
  5. Step 5: Solve for x
    x = 76,363,224,958.08/312,668.10
  6. Step 6: Final answer
    x = 244,230.94

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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.