Home / 919,260.12-1,268,588.66-505,802.27

Finding the Fourth Proportional to 919,260.12, 1,268,588.66 and 505,802.27

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Solution

The fourth proportional to 919,260.12, 1,268,588.66 and 505,802.27 is: 698,012.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,260.12 : 1,268,588.66 = 505,802.27 : x
  2. Step 2: Convert to fraction form
    919,260.12/1,268,588.66 = 505,802.27/x
  3. Step 3: Cross multiply
    919,260.12x = 1,268,588.66 × 505,802.27
  4. Step 4: Simplify right side
    919,260.12x = 641,655,015,052.30
  5. Step 5: Solve for x
    x = 641,655,015,052.30/919,260.12
  6. Step 6: Final answer
    x = 698,012.46

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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.