Home / 919,671.47-1,377,513.36-445,362.20

Finding the Fourth Proportional to 919,671.47, 1,377,513.36 and 445,362.20

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Solution

The fourth proportional to 919,671.47, 1,377,513.36 and 445,362.20 is: 667,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,671.47 : 1,377,513.36 = 445,362.20 : x
  2. Step 2: Convert to fraction form
    919,671.47/1,377,513.36 = 445,362.20/x
  3. Step 3: Cross multiply
    919,671.47x = 1,377,513.36 × 445,362.20
  4. Step 4: Simplify right side
    919,671.47x = 613,492,373,651.43
  5. Step 5: Solve for x
    x = 613,492,373,651.43/919,671.47
  6. Step 6: Final answer
    x = 667,077.75

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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.