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Finding the Fourth Proportional to 424,992.72, 634,379.64 and 374,548.88

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Solution

The fourth proportional to 424,992.72, 634,379.64 and 374,548.88 is: 559,082.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,992.72 : 634,379.64 = 374,548.88 : x
  2. Step 2: Convert to fraction form
    424,992.72/634,379.64 = 374,548.88/x
  3. Step 3: Cross multiply
    424,992.72x = 634,379.64 × 374,548.88
  4. Step 4: Simplify right side
    424,992.72x = 237,606,183,656.80
  5. Step 5: Solve for x
    x = 237,606,183,656.80/424,992.72
  6. Step 6: Final answer
    x = 559,082.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.