Home / 647,769.40-971,569.05-198,535.30

Finding the Fourth Proportional to 647,769.40, 971,569.05 and 198,535.30

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Solution

The fourth proportional to 647,769.40, 971,569.05 and 198,535.30 is: 297,776.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,769.40 : 971,569.05 = 198,535.30 : x
  2. Step 2: Convert to fraction form
    647,769.40/971,569.05 = 198,535.30/x
  3. Step 3: Cross multiply
    647,769.40x = 971,569.05 × 198,535.30
  4. Step 4: Simplify right side
    647,769.40x = 192,890,752,812.47
  5. Step 5: Solve for x
    x = 192,890,752,812.47/647,769.40
  6. Step 6: Final answer
    x = 297,776.88

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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.