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Finding the Fourth Proportional to 373,978.92, 560,552.84 and 284,938.86

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Solution

The fourth proportional to 373,978.92, 560,552.84 and 284,938.86 is: 427,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,978.92 : 560,552.84 = 284,938.86 : x
  2. Step 2: Convert to fraction form
    373,978.92/560,552.84 = 284,938.86/x
  3. Step 3: Cross multiply
    373,978.92x = 560,552.84 × 284,938.86
  4. Step 4: Simplify right side
    373,978.92x = 159,723,287,199.36
  5. Step 5: Solve for x
    x = 159,723,287,199.36/373,978.92
  6. Step 6: Final answer
    x = 427,091.69

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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.