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Finding the Fourth Proportional to 493,670.40, 740,505.60 and 119,693.40

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Solution

The fourth proportional to 493,670.40, 740,505.60 and 119,693.40 is: 179,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,670.40 : 740,505.60 = 119,693.40 : x
  2. Step 2: Convert to fraction form
    493,670.40/740,505.60 = 119,693.40/x
  3. Step 3: Cross multiply
    493,670.40x = 740,505.60 × 119,693.40
  4. Step 4: Simplify right side
    493,670.40x = 88,633,632,983.04
  5. Step 5: Solve for x
    x = 88,633,632,983.04/493,670.40
  6. Step 6: Final answer
    x = 179,540.10

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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.