Home / 776,203.60-1,070,583.60-685,399.36

Finding the Fourth Proportional to 776,203.60, 1,070,583.60 and 685,399.36

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Solution

The fourth proportional to 776,203.60, 1,070,583.60 and 685,399.36 is: 945,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,203.60 : 1,070,583.60 = 685,399.36 : x
  2. Step 2: Convert to fraction form
    776,203.60/1,070,583.60 = 685,399.36/x
  3. Step 3: Cross multiply
    776,203.60x = 1,070,583.60 × 685,399.36
  4. Step 4: Simplify right side
    776,203.60x = 733,777,314,266.50
  5. Step 5: Solve for x
    x = 733,777,314,266.50/776,203.60
  6. Step 6: Final answer
    x = 945,341.29

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1.5x scale

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.