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Finding the Fourth Proportional to 467,131.50, 644,642.19 and 265,927.50

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Solution

The fourth proportional to 467,131.50, 644,642.19 and 265,927.50 is: 366,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,131.50 : 644,642.19 = 265,927.50 : x
  2. Step 2: Convert to fraction form
    467,131.50/644,642.19 = 265,927.50/x
  3. Step 3: Cross multiply
    467,131.50x = 644,642.19 × 265,927.50
  4. Step 4: Simplify right side
    467,131.50x = 171,428,085,981.23
  5. Step 5: Solve for x
    x = 171,428,085,981.23/467,131.50
  6. Step 6: Final answer
    x = 366,980.36

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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.