Home / 691,165.80-1,036,678.62-185,661.11

Finding the Fourth Proportional to 691,165.80, 1,036,678.62 and 185,661.11

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Solution

The fourth proportional to 691,165.80, 1,036,678.62 and 185,661.11 is: 278,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,165.80 : 1,036,678.62 = 185,661.11 : x
  2. Step 2: Convert to fraction form
    691,165.80/1,036,678.62 = 185,661.11/x
  3. Step 3: Cross multiply
    691,165.80x = 1,036,678.62 × 185,661.11
  4. Step 4: Simplify right side
    691,165.80x = 192,470,903,302.47
  5. Step 5: Solve for x
    x = 192,470,903,302.47/691,165.80
  6. Step 6: Final answer
    x = 278,472.84

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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.