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Finding the Fourth Proportional to 344,198.40, 474,986.80 and 191,235.84

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Solution

The fourth proportional to 344,198.40, 474,986.80 and 191,235.84 is: 263,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,198.40 : 474,986.80 = 191,235.84 : x
  2. Step 2: Convert to fraction form
    344,198.40/474,986.80 = 191,235.84/x
  3. Step 3: Cross multiply
    344,198.40x = 474,986.80 × 191,235.84
  4. Step 4: Simplify right side
    344,198.40x = 90,834,499,686.91
  5. Step 5: Solve for x
    x = 90,834,499,686.91/344,198.40
  6. Step 6: Final answer
    x = 263,901.57

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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.