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Finding the Fourth Proportional to 567,504.74, 783,162.60 and 312,865.04

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Solution

The fourth proportional to 567,504.74, 783,162.60 and 312,865.04 is: 431,757.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,504.74 : 783,162.60 = 312,865.04 : x
  2. Step 2: Convert to fraction form
    567,504.74/783,162.60 = 312,865.04/x
  3. Step 3: Cross multiply
    567,504.74x = 783,162.60 × 312,865.04
  4. Step 4: Simplify right side
    567,504.74x = 245,024,198,175.50
  5. Step 5: Solve for x
    x = 245,024,198,175.50/567,504.74
  6. Step 6: Final answer
    x = 431,757.10

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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.