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Finding the Fourth Proportional to 455,053.80, 682,580.70 and 202,333.80

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Solution

The fourth proportional to 455,053.80, 682,580.70 and 202,333.80 is: 303,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,053.80 : 682,580.70 = 202,333.80 : x
  2. Step 2: Convert to fraction form
    455,053.80/682,580.70 = 202,333.80/x
  3. Step 3: Cross multiply
    455,053.80x = 682,580.70 × 202,333.80
  4. Step 4: Simplify right side
    455,053.80x = 138,109,146,837.66
  5. Step 5: Solve for x
    x = 138,109,146,837.66/455,053.80
  6. Step 6: Final answer
    x = 303,500.70

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Similar ratio
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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.