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Finding the Fourth Proportional to 636,569.23, 880,778.74 and 555,067.43

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Solution

The fourth proportional to 636,569.23, 880,778.74 and 555,067.43 is: 768,010.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,569.23 : 880,778.74 = 555,067.43 : x
  2. Step 2: Convert to fraction form
    636,569.23/880,778.74 = 555,067.43/x
  3. Step 3: Cross multiply
    636,569.23x = 880,778.74 × 555,067.43
  4. Step 4: Simplify right side
    636,569.23x = 488,891,593,555.80
  5. Step 5: Solve for x
    x = 488,891,593,555.80/636,569.23
  6. Step 6: Final answer
    x = 768,010.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.