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Finding the Fourth Proportional to 223,679.20, 313,565.60 and 223,679.20

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Solution

The fourth proportional to 223,679.20, 313,565.60 and 223,679.20 is: 313,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,679.20 : 313,565.60 = 223,679.20 : x
  2. Step 2: Convert to fraction form
    223,679.20/313,565.60 = 223,679.20/x
  3. Step 3: Cross multiply
    223,679.20x = 313,565.60 × 223,679.20
  4. Step 4: Simplify right side
    223,679.20x = 70,138,102,555.52
  5. Step 5: Solve for x
    x = 70,138,102,555.52/223,679.20
  6. Step 6: Final answer
    x = 313,565.60

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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.