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Finding the Fourth Proportional to 297,693.60, 410,820.04 and 161,728.60

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Solution

The fourth proportional to 297,693.60, 410,820.04 and 161,728.60 is: 223,187.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,693.60 : 410,820.04 = 161,728.60 : x
  2. Step 2: Convert to fraction form
    297,693.60/410,820.04 = 161,728.60/x
  3. Step 3: Cross multiply
    297,693.60x = 410,820.04 × 161,728.60
  4. Step 4: Simplify right side
    297,693.60x = 66,441,349,921.14
  5. Step 5: Solve for x
    x = 66,441,349,921.14/297,693.60
  6. Step 6: Final answer
    x = 223,187.03

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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.