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Finding the Fourth Proportional to 319,969.92, 441,419.04 and 192,573.12

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Solution

The fourth proportional to 319,969.92, 441,419.04 and 192,573.12 is: 265,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,969.92 : 441,419.04 = 192,573.12 : x
  2. Step 2: Convert to fraction form
    319,969.92/441,419.04 = 192,573.12/x
  3. Step 3: Cross multiply
    319,969.92x = 441,419.04 × 192,573.12
  4. Step 4: Simplify right side
    319,969.92x = 85,005,441,760.20
  5. Step 5: Solve for x
    x = 85,005,441,760.20/319,969.92
  6. Step 6: Final answer
    x = 265,666.98

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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.