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Finding the Fourth Proportional to 350,969.21, 484,337.45 and 189,824.21

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Solution

The fourth proportional to 350,969.21, 484,337.45 and 189,824.21 is: 261,957.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,969.21 : 484,337.45 = 189,824.21 : x
  2. Step 2: Convert to fraction form
    350,969.21/484,337.45 = 189,824.21/x
  3. Step 3: Cross multiply
    350,969.21x = 484,337.45 × 189,824.21
  4. Step 4: Simplify right side
    350,969.21x = 91,938,973,819.66
  5. Step 5: Solve for x
    x = 91,938,973,819.66/350,969.21
  6. Step 6: Final answer
    x = 261,957.38

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1.5x scale

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.