Home / 646,947.92-892,839.33-356,611.02

Finding the Fourth Proportional to 646,947.92, 892,839.33 and 356,611.02

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Solution

The fourth proportional to 646,947.92, 892,839.33 and 356,611.02 is: 492,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,947.92 : 892,839.33 = 356,611.02 : x
  2. Step 2: Convert to fraction form
    646,947.92/892,839.33 = 356,611.02/x
  3. Step 3: Cross multiply
    646,947.92x = 892,839.33 × 356,611.02
  4. Step 4: Simplify right side
    646,947.92x = 318,396,348,727.77
  5. Step 5: Solve for x
    x = 318,396,348,727.77/646,947.92
  6. Step 6: Final answer
    x = 492,151.44

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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.