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Finding the Fourth Proportional to 435,707.44, 601,481.06 and 290,754.45

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Solution

The fourth proportional to 435,707.44, 601,481.06 and 290,754.45 is: 401,377.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,707.44 : 601,481.06 = 290,754.45 : x
  2. Step 2: Convert to fraction form
    435,707.44/601,481.06 = 290,754.45/x
  3. Step 3: Cross multiply
    435,707.44x = 601,481.06 × 290,754.45
  4. Step 4: Simplify right side
    435,707.44x = 174,883,294,785.72
  5. Step 5: Solve for x
    x = 174,883,294,785.72/435,707.44
  6. Step 6: Final answer
    x = 401,377.80

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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.