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Finding the Fourth Proportional to 343,793.36, 474,438.48 and 190,834.40

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Solution

The fourth proportional to 343,793.36, 474,438.48 and 190,834.40 is: 263,353.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,793.36 : 474,438.48 = 190,834.40 : x
  2. Step 2: Convert to fraction form
    343,793.36/474,438.48 = 190,834.40/x
  3. Step 3: Cross multiply
    343,793.36x = 474,438.48 × 190,834.40
  4. Step 4: Simplify right side
    343,793.36x = 90,539,182,667.71
  5. Step 5: Solve for x
    x = 90,539,182,667.71/343,793.36
  6. Step 6: Final answer
    x = 263,353.49

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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.