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Finding the Fourth Proportional to 354,042.88, 531,142.08 and 196,501.12

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Solution

The fourth proportional to 354,042.88, 531,142.08 and 196,501.12 is: 294,794.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,042.88 : 531,142.08 = 196,501.12 : x
  2. Step 2: Convert to fraction form
    354,042.88/531,142.08 = 196,501.12/x
  3. Step 3: Cross multiply
    354,042.88x = 531,142.08 × 196,501.12
  4. Step 4: Simplify right side
    354,042.88x = 104,370,013,599.13
  5. Step 5: Solve for x
    x = 104,370,013,599.13/354,042.88
  6. Step 6: Final answer
    x = 294,794.84

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1.5x scale

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.