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Finding the Fourth Proportional to 343,964.67, 474,655.27 and 191,012.55

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Solution

The fourth proportional to 343,964.67, 474,655.27 and 191,012.55 is: 263,588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,964.67 : 474,655.27 = 191,012.55 : x
  2. Step 2: Convert to fraction form
    343,964.67/474,655.27 = 191,012.55/x
  3. Step 3: Cross multiply
    343,964.67x = 474,655.27 × 191,012.55
  4. Step 4: Simplify right side
    343,964.67x = 90,665,113,493.64
  5. Step 5: Solve for x
    x = 90,665,113,493.64/343,964.67
  6. Step 6: Final answer
    x = 263,588.45

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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.