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Finding the Fourth Proportional to 303,633.36, 455,727.82 and 153,976.94

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Solution

The fourth proportional to 303,633.36, 455,727.82 and 153,976.94 is: 231,106.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,633.36 : 455,727.82 = 153,976.94 : x
  2. Step 2: Convert to fraction form
    303,633.36/455,727.82 = 153,976.94/x
  3. Step 3: Cross multiply
    303,633.36x = 455,727.82 × 153,976.94
  4. Step 4: Simplify right side
    303,633.36x = 70,171,575,196.47
  5. Step 5: Solve for x
    x = 70,171,575,196.47/303,633.36
  6. Step 6: Final answer
    x = 231,106.28

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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.