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Finding the Fourth Proportional to 404,865.60, 607,665.60 and 205,324.80

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Solution

The fourth proportional to 404,865.60, 607,665.60 and 205,324.80 is: 308,173.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,865.60 : 607,665.60 = 205,324.80 : x
  2. Step 2: Convert to fraction form
    404,865.60/607,665.60 = 205,324.80/x
  3. Step 3: Cross multiply
    404,865.60x = 607,665.60 × 205,324.80
  4. Step 4: Simplify right side
    404,865.60x = 124,768,817,786.88
  5. Step 5: Solve for x
    x = 124,768,817,786.88/404,865.60
  6. Step 6: Final answer
    x = 308,173.42

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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.