Home / 1,640,157.67-2,263,418.55-915,005.39

Finding the Fourth Proportional to 1,640,157.67, 2,263,418.55 and 915,005.39

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Solution

The fourth proportional to 1,640,157.67, 2,263,418.55 and 915,005.39 is: 1,262,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,157.67 : 2,263,418.55 = 915,005.39 : x
  2. Step 2: Convert to fraction form
    1,640,157.67/2,263,418.55 = 915,005.39/x
  3. Step 3: Cross multiply
    1,640,157.67x = 2,263,418.55 × 915,005.39
  4. Step 4: Simplify right side
    1,640,157.67x = 2,071,040,173,075.98
  5. Step 5: Solve for x
    x = 2,071,040,173,075.98/1,640,157.67
  6. Step 6: Final answer
    x = 1,262,707.98

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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.