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Finding the Fourth Proportional to 567,577.08, 783,262.62 and 312,937.56

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Solution

The fourth proportional to 567,577.08, 783,262.62 and 312,937.56 is: 431,857.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,577.08 : 783,262.62 = 312,937.56 : x
  2. Step 2: Convert to fraction form
    567,577.08/783,262.62 = 312,937.56/x
  3. Step 3: Cross multiply
    567,577.08x = 783,262.62 × 312,937.56
  4. Step 4: Simplify right side
    567,577.08x = 245,112,293,142.01
  5. Step 5: Solve for x
    x = 245,112,293,142.01/567,577.08
  6. Step 6: Final answer
    x = 431,857.28

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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.