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Finding the Fourth Proportional to 401,698.35, 554,361.04 and 240,522.59

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Solution

The fourth proportional to 401,698.35, 554,361.04 and 240,522.59 is: 331,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,698.35 : 554,361.04 = 240,522.59 : x
  2. Step 2: Convert to fraction form
    401,698.35/554,361.04 = 240,522.59/x
  3. Step 3: Cross multiply
    401,698.35x = 554,361.04 × 240,522.59
  4. Step 4: Simplify right side
    401,698.35x = 133,336,353,135.89
  5. Step 5: Solve for x
    x = 133,336,353,135.89/401,698.35
  6. Step 6: Final answer
    x = 331,931.54

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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.