Home / 1,388,086.36-1,915,546.05-776,232.11

Finding the Fourth Proportional to 1,388,086.36, 1,915,546.05 and 776,232.11

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Solution

The fourth proportional to 1,388,086.36, 1,915,546.05 and 776,232.11 is: 1,071,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,086.36 : 1,915,546.05 = 776,232.11 : x
  2. Step 2: Convert to fraction form
    1,388,086.36/1,915,546.05 = 776,232.11/x
  3. Step 3: Cross multiply
    1,388,086.36x = 1,915,546.05 × 776,232.11
  4. Step 4: Simplify right side
    1,388,086.36x = 1,486,908,352,193.67
  5. Step 5: Solve for x
    x = 1,486,908,352,193.67/1,388,086.36
  6. Step 6: Final answer
    x = 1,071,192.97

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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.