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Finding the Fourth Proportional to 303,400.10, 455,100.15 and 303,400.10

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Solution

The fourth proportional to 303,400.10, 455,100.15 and 303,400.10 is: 455,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,400.10 : 455,100.15 = 303,400.10 : x
  2. Step 2: Convert to fraction form
    303,400.10/455,100.15 = 303,400.10/x
  3. Step 3: Cross multiply
    303,400.10x = 455,100.15 × 303,400.10
  4. Step 4: Simplify right side
    303,400.10x = 138,077,431,020.02
  5. Step 5: Solve for x
    x = 138,077,431,020.02/303,400.10
  6. Step 6: Final answer
    x = 455,100.15

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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.