Home / 645,511.58-966,197.01-345,241.34

Finding the Fourth Proportional to 645,511.58, 966,197.01 and 345,241.34

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Solution

The fourth proportional to 645,511.58, 966,197.01 and 345,241.34 is: 516,754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,511.58 : 966,197.01 = 345,241.34 : x
  2. Step 2: Convert to fraction form
    645,511.58/966,197.01 = 345,241.34/x
  3. Step 3: Cross multiply
    645,511.58x = 966,197.01 × 345,241.34
  4. Step 4: Simplify right side
    645,511.58x = 333,571,150,436.39
  5. Step 5: Solve for x
    x = 333,571,150,436.39/645,511.58
  6. Step 6: Final answer
    x = 516,754.71

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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.