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Finding the Fourth Proportional to 614,754.72, 848,365.16 and 342,839.79

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Solution

The fourth proportional to 614,754.72, 848,365.16 and 342,839.79 is: 473,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,754.72 : 848,365.16 = 342,839.79 : x
  2. Step 2: Convert to fraction form
    614,754.72/848,365.16 = 342,839.79/x
  3. Step 3: Cross multiply
    614,754.72x = 848,365.16 × 342,839.79
  4. Step 4: Simplify right side
    614,754.72x = 290,853,331,583.52
  5. Step 5: Solve for x
    x = 290,853,331,583.52/614,754.72
  6. Step 6: Final answer
    x = 473,120.94

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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.