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Finding the Fourth Proportional to 551,833.57, 761,738.43 and 322,465.41

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Solution

The fourth proportional to 551,833.57, 761,738.43 and 322,465.41 is: 445,123.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,833.57 : 761,738.43 = 322,465.41 : x
  2. Step 2: Convert to fraction form
    551,833.57/761,738.43 = 322,465.41/x
  3. Step 3: Cross multiply
    551,833.57x = 761,738.43 × 322,465.41
  4. Step 4: Simplify right side
    551,833.57x = 245,634,293,530.38
  5. Step 5: Solve for x
    x = 245,634,293,530.38/551,833.57
  6. Step 6: Final answer
    x = 445,123.87

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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.