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Finding the Fourth Proportional to 223,478.20, 313,284.20 and 223,478.20

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Solution

The fourth proportional to 223,478.20, 313,284.20 and 223,478.20 is: 313,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,478.20 : 313,284.20 = 223,478.20 : x
  2. Step 2: Convert to fraction form
    223,478.20/313,284.20 = 223,478.20/x
  3. Step 3: Cross multiply
    223,478.20x = 313,284.20 × 223,478.20
  4. Step 4: Simplify right side
    223,478.20x = 70,012,189,104.44
  5. Step 5: Solve for x
    x = 70,012,189,104.44/223,478.20
  6. Step 6: Final answer
    x = 313,284.20

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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.