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Finding the Fourth Proportional to 618,249.14, 927,106.32 and 213,484.04

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Solution

The fourth proportional to 618,249.14, 927,106.32 and 213,484.04 is: 320,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,249.14 : 927,106.32 = 213,484.04 : x
  2. Step 2: Convert to fraction form
    618,249.14/927,106.32 = 213,484.04/x
  3. Step 3: Cross multiply
    618,249.14x = 927,106.32 × 213,484.04
  4. Step 4: Simplify right side
    618,249.14x = 197,922,402,703.13
  5. Step 5: Solve for x
    x = 197,922,402,703.13/618,249.14
  6. Step 6: Final answer
    x = 320,133.73

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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.