Home / 1,388,519.48-1,916,334.14-776,706.23

Finding the Fourth Proportional to 1,388,519.48, 1,916,334.14 and 776,706.23

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Solution

The fourth proportional to 1,388,519.48, 1,916,334.14 and 776,706.23 is: 1,071,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,519.48 : 1,916,334.14 = 776,706.23 : x
  2. Step 2: Convert to fraction form
    1,388,519.48/1,916,334.14 = 776,706.23/x
  3. Step 3: Cross multiply
    1,388,519.48x = 1,916,334.14 × 776,706.23
  4. Step 4: Simplify right side
    1,388,519.48x = 1,488,428,651,834.49
  5. Step 5: Solve for x
    x = 1,488,428,651,834.49/1,388,519.48
  6. Step 6: Final answer
    x = 1,071,953.75

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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.