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Finding the Fourth Proportional to 298,318.84, 411,698.37 and 171,013.57

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Solution

The fourth proportional to 298,318.84, 411,698.37 and 171,013.57 is: 236,009.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,318.84 : 411,698.37 = 171,013.57 : x
  2. Step 2: Convert to fraction form
    298,318.84/411,698.37 = 171,013.57/x
  3. Step 3: Cross multiply
    298,318.84x = 411,698.37 × 171,013.57
  4. Step 4: Simplify right side
    298,318.84x = 70,406,008,016.88
  5. Step 5: Solve for x
    x = 70,406,008,016.88/298,318.84
  6. Step 6: Final answer
    x = 236,009.26

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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.