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Finding the Fourth Proportional to 567,511.96, 783,172.54 and 312,872.26

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Solution

The fourth proportional to 567,511.96, 783,172.54 and 312,872.26 is: 431,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,511.96 : 783,172.54 = 312,872.26 : x
  2. Step 2: Convert to fraction form
    567,511.96/783,172.54 = 312,872.26/x
  3. Step 3: Cross multiply
    567,511.96x = 783,172.54 × 312,872.26
  4. Step 4: Simplify right side
    567,511.96x = 245,032,962,559.74
  5. Step 5: Solve for x
    x = 245,032,962,559.74/567,511.96
  6. Step 6: Final answer
    x = 431,767.05

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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.