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Finding the Fourth Proportional to 567,486.18, 783,136.18 and 312,846.48

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Solution

The fourth proportional to 567,486.18, 783,136.18 and 312,846.48 is: 431,731.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,486.18 : 783,136.18 = 312,846.48 : x
  2. Step 2: Convert to fraction form
    567,486.18/783,136.18 = 312,846.48/x
  3. Step 3: Cross multiply
    567,486.18x = 783,136.18 × 312,846.48
  4. Step 4: Simplify right side
    567,486.18x = 245,001,397,273.65
  5. Step 5: Solve for x
    x = 245,001,397,273.65/567,486.18
  6. Step 6: Final answer
    x = 431,731.04

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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.