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Finding the Fourth Proportional to 289,153.33, 398,983.98 and 181,647.22

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Solution

The fourth proportional to 289,153.33, 398,983.98 and 181,647.22 is: 250,643.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,153.33 : 398,983.98 = 181,647.22 : x
  2. Step 2: Convert to fraction form
    289,153.33/398,983.98 = 181,647.22/x
  3. Step 3: Cross multiply
    289,153.33x = 398,983.98 × 181,647.22
  4. Step 4: Simplify right side
    289,153.33x = 72,474,330,791.54
  5. Step 5: Solve for x
    x = 72,474,330,791.54/289,153.33
  6. Step 6: Final answer
    x = 250,643.25

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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.