Home / 647,811.40-971,717.10-198,528.70

Finding the Fourth Proportional to 647,811.40, 971,717.10 and 198,528.70

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Solution

The fourth proportional to 647,811.40, 971,717.10 and 198,528.70 is: 297,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,811.40 : 971,717.10 = 198,528.70 : x
  2. Step 2: Convert to fraction form
    647,811.40/971,717.10 = 198,528.70/x
  3. Step 3: Cross multiply
    647,811.40x = 971,717.10 × 198,528.70
  4. Step 4: Simplify right side
    647,811.40x = 192,913,732,630.77
  5. Step 5: Solve for x
    x = 192,913,732,630.77/647,811.40
  6. Step 6: Final answer
    x = 297,793.05

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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.