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Finding the Fourth Proportional to 349,048.40, 481,658.40 and 196,078.28

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Solution

The fourth proportional to 349,048.40, 481,658.40 and 196,078.28 is: 270,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,048.40 : 481,658.40 = 196,078.28 : x
  2. Step 2: Convert to fraction form
    349,048.40/481,658.40 = 196,078.28/x
  3. Step 3: Cross multiply
    349,048.40x = 481,658.40 × 196,078.28
  4. Step 4: Simplify right side
    349,048.40x = 94,442,748,211.26
  5. Step 5: Solve for x
    x = 94,442,748,211.26/349,048.40
  6. Step 6: Final answer
    x = 270,572.07

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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.