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Finding the Fourth Proportional to 310,223.20, 465,334.80 and 248,015.20

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Solution

The fourth proportional to 310,223.20, 465,334.80 and 248,015.20 is: 372,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,223.20 : 465,334.80 = 248,015.20 : x
  2. Step 2: Convert to fraction form
    310,223.20/465,334.80 = 248,015.20/x
  3. Step 3: Cross multiply
    310,223.20x = 465,334.80 × 248,015.20
  4. Step 4: Simplify right side
    310,223.20x = 115,410,103,488.96
  5. Step 5: Solve for x
    x = 115,410,103,488.96/310,223.20
  6. Step 6: Final answer
    x = 372,022.80

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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.