Home / 445,133.20-613,944.75-383,149.21

Finding the Fourth Proportional to 445,133.20, 613,944.75 and 383,149.21

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Solution

The fourth proportional to 445,133.20, 613,944.75 and 383,149.21 is: 528,454.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,133.20 : 613,944.75 = 383,149.21 : x
  2. Step 2: Convert to fraction form
    445,133.20/613,944.75 = 383,149.21/x
  3. Step 3: Cross multiply
    445,133.20x = 613,944.75 × 383,149.21
  4. Step 4: Simplify right side
    445,133.20x = 235,232,445,946.15
  5. Step 5: Solve for x
    x = 235,232,445,946.15/445,133.20
  6. Step 6: Final answer
    x = 528,454.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.