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Finding the Fourth Proportional to 350,768.48, 484,048.71 and 221,776.38

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Solution

The fourth proportional to 350,768.48, 484,048.71 and 221,776.38 is: 306,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,768.48 : 484,048.71 = 221,776.38 : x
  2. Step 2: Convert to fraction form
    350,768.48/484,048.71 = 221,776.38/x
  3. Step 3: Cross multiply
    350,768.48x = 484,048.71 × 221,776.38
  4. Step 4: Simplify right side
    350,768.48x = 107,350,570,647.47
  5. Step 5: Solve for x
    x = 107,350,570,647.47/350,768.48
  6. Step 6: Final answer
    x = 306,043.95

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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.