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Finding the Fourth Proportional to 567,393.50, 783,003.03 and 312,750.16

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Solution

The fourth proportional to 567,393.50, 783,003.03 and 312,750.16 is: 431,595.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,393.50 : 783,003.03 = 312,750.16 : x
  2. Step 2: Convert to fraction form
    567,393.50/783,003.03 = 312,750.16/x
  3. Step 3: Cross multiply
    567,393.50x = 783,003.03 × 312,750.16
  4. Step 4: Simplify right side
    567,393.50x = 244,884,322,912.99
  5. Step 5: Solve for x
    x = 244,884,322,912.99/567,393.50
  6. Step 6: Final answer
    x = 431,595.22

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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.