Home / 643,583.46-965,531.26-194,277.48

Finding the Fourth Proportional to 643,583.46, 965,531.26 and 194,277.48

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Solution

The fourth proportional to 643,583.46, 965,531.26 and 194,277.48 is: 291,463.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,583.46 : 965,531.26 = 194,277.48 : x
  2. Step 2: Convert to fraction form
    643,583.46/965,531.26 = 194,277.48/x
  3. Step 3: Cross multiply
    643,583.46x = 965,531.26 × 194,277.48
  4. Step 4: Simplify right side
    643,583.46x = 187,580,980,054.03
  5. Step 5: Solve for x
    x = 187,580,980,054.03/643,583.46
  6. Step 6: Final answer
    x = 291,463.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.