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Finding the Fourth Proportional to 404,893.20, 607,512.60 and 194,422.80

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Solution

The fourth proportional to 404,893.20, 607,512.60 and 194,422.80 is: 291,717.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,893.20 : 607,512.60 = 194,422.80 : x
  2. Step 2: Convert to fraction form
    404,893.20/607,512.60 = 194,422.80/x
  3. Step 3: Cross multiply
    404,893.20x = 607,512.60 × 194,422.80
  4. Step 4: Simplify right side
    404,893.20x = 118,114,300,727.28
  5. Step 5: Solve for x
    x = 118,114,300,727.28/404,893.20
  6. Step 6: Final answer
    x = 291,717.18

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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.