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Finding the Fourth Proportional to 319,695.79, 441,173.46 and 174,496.78

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Solution

The fourth proportional to 319,695.79, 441,173.46 and 174,496.78 is: 240,801.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,695.79 : 441,173.46 = 174,496.78 : x
  2. Step 2: Convert to fraction form
    319,695.79/441,173.46 = 174,496.78/x
  3. Step 3: Cross multiply
    319,695.79x = 441,173.46 × 174,496.78
  4. Step 4: Simplify right side
    319,695.79x = 76,983,348,191.46
  5. Step 5: Solve for x
    x = 76,983,348,191.46/319,695.79
  6. Step 6: Final answer
    x = 240,801.88

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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.