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Finding the Fourth Proportional to 357,969.32, 535,785.66 and 263,174.44

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Solution

The fourth proportional to 357,969.32, 535,785.66 and 263,174.44 is: 393,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,969.32 : 535,785.66 = 263,174.44 : x
  2. Step 2: Convert to fraction form
    357,969.32/535,785.66 = 263,174.44/x
  3. Step 3: Cross multiply
    357,969.32x = 535,785.66 × 263,174.44
  4. Step 4: Simplify right side
    357,969.32x = 141,005,091,030.53
  5. Step 5: Solve for x
    x = 141,005,091,030.53/357,969.32
  6. Step 6: Final answer
    x = 393,902.73

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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.