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Finding the Fourth Proportional to 349,035.21, 481,655.84 and 213,296.36

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Solution

The fourth proportional to 349,035.21, 481,655.84 and 213,296.36 is: 294,341.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,035.21 : 481,655.84 = 213,296.36 : x
  2. Step 2: Convert to fraction form
    349,035.21/481,655.84 = 213,296.36/x
  3. Step 3: Cross multiply
    349,035.21x = 481,655.84 × 213,296.36
  4. Step 4: Simplify right side
    349,035.21x = 102,735,433,969.98
  5. Step 5: Solve for x
    x = 102,735,433,969.98/349,035.21
  6. Step 6: Final answer
    x = 294,341.18

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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.