Home / 647,680.05-971,592.98-198,397.35

Finding the Fourth Proportional to 647,680.05, 971,592.98 and 198,397.35

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Solution

The fourth proportional to 647,680.05, 971,592.98 and 198,397.35 is: 297,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,680.05 : 971,592.98 = 198,397.35 : x
  2. Step 2: Convert to fraction form
    647,680.05/971,592.98 = 198,397.35/x
  3. Step 3: Cross multiply
    647,680.05x = 971,592.98 × 198,397.35
  4. Step 4: Simplify right side
    647,680.05x = 192,761,471,518.62
  5. Step 5: Solve for x
    x = 192,761,471,518.62/647,680.05
  6. Step 6: Final answer
    x = 297,618.36

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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.