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Finding the Fourth Proportional to 328,410.86, 453,212.01 and 192,412.26

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Solution

The fourth proportional to 328,410.86, 453,212.01 and 192,412.26 is: 265,531.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,410.86 : 453,212.01 = 192,412.26 : x
  2. Step 2: Convert to fraction form
    328,410.86/453,212.01 = 192,412.26/x
  3. Step 3: Cross multiply
    328,410.86x = 453,212.01 × 192,412.26
  4. Step 4: Simplify right side
    328,410.86x = 87,203,547,103.24
  5. Step 5: Solve for x
    x = 87,203,547,103.24/328,410.86
  6. Step 6: Final answer
    x = 265,531.87

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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.