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Finding the Fourth Proportional to 306,693.56, 423,207.42 and 226,164.44

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Solution

The fourth proportional to 306,693.56, 423,207.42 and 226,164.44 is: 312,085.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,693.56 : 423,207.42 = 226,164.44 : x
  2. Step 2: Convert to fraction form
    306,693.56/423,207.42 = 226,164.44/x
  3. Step 3: Cross multiply
    306,693.56x = 423,207.42 × 226,164.44
  4. Step 4: Simplify right side
    306,693.56x = 95,714,467,032.11
  5. Step 5: Solve for x
    x = 95,714,467,032.11/306,693.56
  6. Step 6: Final answer
    x = 312,085.03

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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.