Home / 953,405.44-1,427,930.88-455,119.36

Finding the Fourth Proportional to 953,405.44, 1,427,930.88 and 455,119.36

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Solution

The fourth proportional to 953,405.44, 1,427,930.88 and 455,119.36 is: 681,639.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,405.44 : 1,427,930.88 = 455,119.36 : x
  2. Step 2: Convert to fraction form
    953,405.44/1,427,930.88 = 455,119.36/x
  3. Step 3: Cross multiply
    953,405.44x = 1,427,930.88 × 455,119.36
  4. Step 4: Simplify right side
    953,405.44x = 649,878,988,229.84
  5. Step 5: Solve for x
    x = 649,878,988,229.84/953,405.44
  6. Step 6: Final answer
    x = 681,639.69

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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.