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Finding the Fourth Proportional to 476,921.60, 715,123.20 and 196,467.20

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Solution

The fourth proportional to 476,921.60, 715,123.20 and 196,467.20 is: 294,594.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,921.60 : 715,123.20 = 196,467.20 : x
  2. Step 2: Convert to fraction form
    476,921.60/715,123.20 = 196,467.20/x
  3. Step 3: Cross multiply
    476,921.60x = 715,123.20 × 196,467.20
  4. Step 4: Simplify right side
    476,921.60x = 140,498,252,759.04
  5. Step 5: Solve for x
    x = 140,498,252,759.04/476,921.60
  6. Step 6: Final answer
    x = 294,594.02

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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.