Home / 1,921,671.44-2,882,858.16-642,157.64

Finding the Fourth Proportional to 1,921,671.44, 2,882,858.16 and 642,157.64

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Solution

The fourth proportional to 1,921,671.44, 2,882,858.16 and 642,157.64 is: 963,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,671.44 : 2,882,858.16 = 642,157.64 : x
  2. Step 2: Convert to fraction form
    1,921,671.44/2,882,858.16 = 642,157.64/x
  3. Step 3: Cross multiply
    1,921,671.44x = 2,882,858.16 × 642,157.64
  4. Step 4: Simplify right side
    1,921,671.44x = 1,851,249,392,480.34
  5. Step 5: Solve for x
    x = 1,851,249,392,480.34/1,921,671.44
  6. Step 6: Final answer
    x = 963,353.75

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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.