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Finding the Fourth Proportional to 328,418.37, 453,222.36 and 192,419.76

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Solution

The fourth proportional to 328,418.37, 453,222.36 and 192,419.76 is: 265,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,418.37 : 453,222.36 = 192,419.76 : x
  2. Step 2: Convert to fraction form
    328,418.37/453,222.36 = 192,419.76/x
  3. Step 3: Cross multiply
    328,418.37x = 453,222.36 × 192,419.76
  4. Step 4: Simplify right side
    328,418.37x = 87,208,937,737.83
  5. Step 5: Solve for x
    x = 87,208,937,737.83/328,418.37
  6. Step 6: Final answer
    x = 265,542.20

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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.