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Finding the Fourth Proportional to 220,223.10, 308,519.70 and 220,223.10

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Solution

The fourth proportional to 220,223.10, 308,519.70 and 220,223.10 is: 308,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,223.10 : 308,519.70 = 220,223.10 : x
  2. Step 2: Convert to fraction form
    220,223.10/308,519.70 = 220,223.10/x
  3. Step 3: Cross multiply
    220,223.10x = 308,519.70 × 220,223.10
  4. Step 4: Simplify right side
    220,223.10x = 67,943,164,745.07
  5. Step 5: Solve for x
    x = 67,943,164,745.07/220,223.10
  6. Step 6: Final answer
    x = 308,519.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.