Home / 643,914.54-965,653.11-223,092.18

Finding the Fourth Proportional to 643,914.54, 965,653.11 and 223,092.18

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Solution

The fourth proportional to 643,914.54, 965,653.11 and 223,092.18 is: 334,562.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,914.54 : 965,653.11 = 223,092.18 : x
  2. Step 2: Convert to fraction form
    643,914.54/965,653.11 = 223,092.18/x
  3. Step 3: Cross multiply
    643,914.54x = 965,653.11 × 223,092.18
  4. Step 4: Simplify right side
    643,914.54x = 215,429,657,433.68
  5. Step 5: Solve for x
    x = 215,429,657,433.68/643,914.54
  6. Step 6: Final answer
    x = 334,562.50

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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.