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Finding the Fourth Proportional to 303,514.70, 455,272.05 and 163,546.70

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Solution

The fourth proportional to 303,514.70, 455,272.05 and 163,546.70 is: 245,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,514.70 : 455,272.05 = 163,546.70 : x
  2. Step 2: Convert to fraction form
    303,514.70/455,272.05 = 163,546.70/x
  3. Step 3: Cross multiply
    303,514.70x = 455,272.05 × 163,546.70
  4. Step 4: Simplify right side
    303,514.70x = 74,458,241,379.74
  5. Step 5: Solve for x
    x = 74,458,241,379.74/303,514.70
  6. Step 6: Final answer
    x = 245,320.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.