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Finding the Fourth Proportional to 328,019.78, 452,512.52 and 191,969.44

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Solution

The fourth proportional to 328,019.78, 452,512.52 and 191,969.44 is: 264,827.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,019.78 : 452,512.52 = 191,969.44 : x
  2. Step 2: Convert to fraction form
    328,019.78/452,512.52 = 191,969.44/x
  3. Step 3: Cross multiply
    328,019.78x = 452,512.52 × 191,969.44
  4. Step 4: Simplify right side
    328,019.78x = 86,868,577,311.36
  5. Step 5: Solve for x
    x = 86,868,577,311.36/328,019.78
  6. Step 6: Final answer
    x = 264,827.26

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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.