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Finding the Fourth Proportional to 493,609.40, 740,414.09 and 119,632.40

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Solution

The fourth proportional to 493,609.40, 740,414.09 and 119,632.40 is: 179,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,609.40 : 740,414.09 = 119,632.40 : x
  2. Step 2: Convert to fraction form
    493,609.40/740,414.09 = 119,632.40/x
  3. Step 3: Cross multiply
    493,609.40x = 740,414.09 × 119,632.40
  4. Step 4: Simplify right side
    493,609.40x = 88,577,514,580.52
  5. Step 5: Solve for x
    x = 88,577,514,580.52/493,609.40
  6. Step 6: Final answer
    x = 179,448.60

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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.