Home / 1,388,084.99-1,915,544.15-776,230.73

Finding the Fourth Proportional to 1,388,084.99, 1,915,544.15 and 776,230.73

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Solution

The fourth proportional to 1,388,084.99, 1,915,544.15 and 776,230.73 is: 1,071,191.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,084.99 : 1,915,544.15 = 776,230.73 : x
  2. Step 2: Convert to fraction form
    1,388,084.99/1,915,544.15 = 776,230.73/x
  3. Step 3: Cross multiply
    1,388,084.99x = 1,915,544.15 × 776,230.73
  4. Step 4: Simplify right side
    1,388,084.99x = 1,486,904,240,631.17
  5. Step 5: Solve for x
    x = 1,486,904,240,631.17/1,388,084.99
  6. Step 6: Final answer
    x = 1,071,191.07

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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.