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Finding the Fourth Proportional to 610,798.61, 843,003.26 and 338,953.82

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Solution

The fourth proportional to 610,798.61, 843,003.26 and 338,953.82 is: 467,812.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,798.61 : 843,003.26 = 338,953.82 : x
  2. Step 2: Convert to fraction form
    610,798.61/843,003.26 = 338,953.82/x
  3. Step 3: Cross multiply
    610,798.61x = 843,003.26 × 338,953.82
  4. Step 4: Simplify right side
    610,798.61x = 285,739,169,339.67
  5. Step 5: Solve for x
    x = 285,739,169,339.67/610,798.61
  6. Step 6: Final answer
    x = 467,812.41

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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.