Home / 647,815.40-971,723.10-198,532.70

Finding the Fourth Proportional to 647,815.40, 971,723.10 and 198,532.70

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Solution

The fourth proportional to 647,815.40, 971,723.10 and 198,532.70 is: 297,799.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,815.40 : 971,723.10 = 198,532.70 : x
  2. Step 2: Convert to fraction form
    647,815.40/971,723.10 = 198,532.70/x
  3. Step 3: Cross multiply
    647,815.40x = 971,723.10 × 198,532.70
  4. Step 4: Simplify right side
    647,815.40x = 192,918,810,695.37
  5. Step 5: Solve for x
    x = 192,918,810,695.37/647,815.40
  6. Step 6: Final answer
    x = 297,799.05

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Similar ratio
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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.