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Finding the Fourth Proportional to 560,382.31, 773,326.70 and 305,733.52

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Solution

The fourth proportional to 560,382.31, 773,326.70 and 305,733.52 is: 421,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,382.31 : 773,326.70 = 305,733.52 : x
  2. Step 2: Convert to fraction form
    560,382.31/773,326.70 = 305,733.52/x
  3. Step 3: Cross multiply
    560,382.31x = 773,326.70 × 305,733.52
  4. Step 4: Simplify right side
    560,382.31x = 236,431,891,392.09
  5. Step 5: Solve for x
    x = 236,431,891,392.09/560,382.31
  6. Step 6: Final answer
    x = 421,911.77

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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.