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Finding the Fourth Proportional to 681,798.03, 940,883.21 and 410,021.60

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Solution

The fourth proportional to 681,798.03, 940,883.21 and 410,021.60 is: 565,830.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,798.03 : 940,883.21 = 410,021.60 : x
  2. Step 2: Convert to fraction form
    681,798.03/940,883.21 = 410,021.60/x
  3. Step 3: Cross multiply
    681,798.03x = 940,883.21 × 410,021.60
  4. Step 4: Simplify right side
    681,798.03x = 385,782,433,960.39
  5. Step 5: Solve for x
    x = 385,782,433,960.39/681,798.03
  6. Step 6: Final answer
    x = 565,830.96

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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.