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Finding the Fourth Proportional to 395,820.56, 593,505.90 and 155,804.38

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Solution

The fourth proportional to 395,820.56, 593,505.90 and 155,804.38 is: 233,618.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,820.56 : 593,505.90 = 155,804.38 : x
  2. Step 2: Convert to fraction form
    395,820.56/593,505.90 = 155,804.38/x
  3. Step 3: Cross multiply
    395,820.56x = 593,505.90 × 155,804.38
  4. Step 4: Simplify right side
    395,820.56x = 92,470,818,775.84
  5. Step 5: Solve for x
    x = 92,470,818,775.84/395,820.56
  6. Step 6: Final answer
    x = 233,618.03

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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.