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Finding the Fourth Proportional to 554,816.44, 765,719.44 and 411,984.28

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Solution

The fourth proportional to 554,816.44, 765,719.44 and 411,984.28 is: 568,592.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,816.44 : 765,719.44 = 411,984.28 : x
  2. Step 2: Convert to fraction form
    554,816.44/765,719.44 = 411,984.28/x
  3. Step 3: Cross multiply
    554,816.44x = 765,719.44 × 411,984.28
  4. Step 4: Simplify right side
    554,816.44x = 315,464,372,170.40
  5. Step 5: Solve for x
    x = 315,464,372,170.40/554,816.44
  6. Step 6: Final answer
    x = 568,592.33

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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.