Home / 1,455,190.83-1,993,620.78-1,400,646.69

Finding the Fourth Proportional to 1,455,190.83, 1,993,620.78 and 1,400,646.69

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Solution

The fourth proportional to 1,455,190.83, 1,993,620.78 and 1,400,646.69 is: 1,918,894.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,190.83 : 1,993,620.78 = 1,400,646.69 : x
  2. Step 2: Convert to fraction form
    1,455,190.83/1,993,620.78 = 1,400,646.69/x
  3. Step 3: Cross multiply
    1,455,190.83x = 1,993,620.78 × 1,400,646.69
  4. Step 4: Simplify right side
    1,455,190.83x = 2,792,358,346,622.22
  5. Step 5: Solve for x
    x = 2,792,358,346,622.22/1,455,190.83
  6. Step 6: Final answer
    x = 1,918,894.96

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.