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Finding the Fourth Proportional to 343,793.60, 474,427.80 and 190,822.88

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Solution

The fourth proportional to 343,793.60, 474,427.80 and 190,822.88 is: 263,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,793.60 : 474,427.80 = 190,822.88 : x
  2. Step 2: Convert to fraction form
    343,793.60/474,427.80 = 190,822.88/x
  3. Step 3: Cross multiply
    343,793.60x = 474,427.80 × 190,822.88
  4. Step 4: Simplify right side
    343,793.60x = 90,531,679,148.06
  5. Step 5: Solve for x
    x = 90,531,679,148.06/343,793.60
  6. Step 6: Final answer
    x = 263,331.48

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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.