Home / 643,947.40-965,877.90-170,622.60

Finding the Fourth Proportional to 643,947.40, 965,877.90 and 170,622.60

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Solution

The fourth proportional to 643,947.40, 965,877.90 and 170,622.60 is: 255,922.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,947.40 : 965,877.90 = 170,622.60 : x
  2. Step 2: Convert to fraction form
    643,947.40/965,877.90 = 170,622.60/x
  3. Step 3: Cross multiply
    643,947.40x = 965,877.90 × 170,622.60
  4. Step 4: Simplify right side
    643,947.40x = 164,800,598,580.54
  5. Step 5: Solve for x
    x = 164,800,598,580.54/643,947.40
  6. Step 6: Final answer
    x = 255,922.45

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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.