Home / 666,261.75-919,441.25-360,338.05

Finding the Fourth Proportional to 666,261.75, 919,441.25 and 360,338.05

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Solution

The fourth proportional to 666,261.75, 919,441.25 and 360,338.05 is: 497,266.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,261.75 : 919,441.25 = 360,338.05 : x
  2. Step 2: Convert to fraction form
    666,261.75/919,441.25 = 360,338.05/x
  3. Step 3: Cross multiply
    666,261.75x = 919,441.25 × 360,338.05
  4. Step 4: Simplify right side
    666,261.75x = 331,309,662,517.36
  5. Step 5: Solve for x
    x = 331,309,662,517.36/666,261.75
  6. Step 6: Final answer
    x = 497,266.52

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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.