Home / 957,921.50-1,436,882.25-389,611.80

Finding the Fourth Proportional to 957,921.50, 1,436,882.25 and 389,611.80

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Solution

The fourth proportional to 957,921.50, 1,436,882.25 and 389,611.80 is: 584,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,921.50 : 1,436,882.25 = 389,611.80 : x
  2. Step 2: Convert to fraction form
    957,921.50/1,436,882.25 = 389,611.80/x
  3. Step 3: Cross multiply
    957,921.50x = 1,436,882.25 × 389,611.80
  4. Step 4: Simplify right side
    957,921.50x = 559,826,279,810.55
  5. Step 5: Solve for x
    x = 559,826,279,810.55/957,921.50
  6. Step 6: Final answer
    x = 584,417.70

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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.