Home / 1,242,168.39-1,863,646.25-443,432.25

Finding the Fourth Proportional to 1,242,168.39, 1,863,646.25 and 443,432.25

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Solution

The fourth proportional to 1,242,168.39, 1,863,646.25 and 443,432.25 is: 665,288.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,168.39 : 1,863,646.25 = 443,432.25 : x
  2. Step 2: Convert to fraction form
    1,242,168.39/1,863,646.25 = 443,432.25/x
  3. Step 3: Cross multiply
    1,242,168.39x = 1,863,646.25 × 443,432.25
  4. Step 4: Simplify right side
    1,242,168.39x = 826,400,847,624.40
  5. Step 5: Solve for x
    x = 826,400,847,624.40/1,242,168.39
  6. Step 6: Final answer
    x = 665,288.90

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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.