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Finding the Fourth Proportional to 328,907.36, 453,893.24 and 178,004.32

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Solution

The fourth proportional to 328,907.36, 453,893.24 and 178,004.32 is: 245,646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,907.36 : 453,893.24 = 178,004.32 : x
  2. Step 2: Convert to fraction form
    328,907.36/453,893.24 = 178,004.32/x
  3. Step 3: Cross multiply
    328,907.36x = 453,893.24 × 178,004.32
  4. Step 4: Simplify right side
    328,907.36x = 80,794,957,538.80
  5. Step 5: Solve for x
    x = 80,794,957,538.80/328,907.36
  6. Step 6: Final answer
    x = 245,646.55

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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.