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Finding the Fourth Proportional to 303,257.72, 418,488.94 and 167,291.80

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Solution

The fourth proportional to 303,257.72, 418,488.94 and 167,291.80 is: 230,858.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,257.72 : 418,488.94 = 167,291.80 : x
  2. Step 2: Convert to fraction form
    303,257.72/418,488.94 = 167,291.80/x
  3. Step 3: Cross multiply
    303,257.72x = 418,488.94 × 167,291.80
  4. Step 4: Simplify right side
    303,257.72x = 70,009,768,052.69
  5. Step 5: Solve for x
    x = 70,009,768,052.69/303,257.72
  6. Step 6: Final answer
    x = 230,858.98

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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.