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Finding the Fourth Proportional to 351,390.42, 484,918.56 and 190,246.86

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Solution

The fourth proportional to 351,390.42, 484,918.56 and 190,246.86 is: 262,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,390.42 : 484,918.56 = 190,246.86 : x
  2. Step 2: Convert to fraction form
    351,390.42/484,918.56 = 190,246.86/x
  3. Step 3: Cross multiply
    351,390.42x = 484,918.56 × 190,246.86
  4. Step 4: Simplify right side
    351,390.42x = 92,254,233,395.72
  5. Step 5: Solve for x
    x = 92,254,233,395.72/351,390.42
  6. Step 6: Final answer
    x = 262,540.55

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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.