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Finding the Fourth Proportional to 375,896.07, 518,234.67 and 298,628.04

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Solution

The fourth proportional to 375,896.07, 518,234.67 and 298,628.04 is: 411,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,896.07 : 518,234.67 = 298,628.04 : x
  2. Step 2: Convert to fraction form
    375,896.07/518,234.67 = 298,628.04/x
  3. Step 3: Cross multiply
    375,896.07x = 518,234.67 × 298,628.04
  4. Step 4: Simplify right side
    375,896.07x = 154,759,403,762.15
  5. Step 5: Solve for x
    x = 154,759,403,762.15/375,896.07
  6. Step 6: Final answer
    x = 411,707.96

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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.