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Finding the Fourth Proportional to 375,323.56, 561,572.80 and 263,222.60

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Solution

The fourth proportional to 375,323.56, 561,572.80 and 263,222.60 is: 393,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,323.56 : 561,572.80 = 263,222.60 : x
  2. Step 2: Convert to fraction form
    375,323.56/561,572.80 = 263,222.60/x
  3. Step 3: Cross multiply
    375,323.56x = 561,572.80 × 263,222.60
  4. Step 4: Simplify right side
    375,323.56x = 147,818,652,505.28
  5. Step 5: Solve for x
    x = 147,818,652,505.28/375,323.56
  6. Step 6: Final answer
    x = 393,843.25

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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.