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Finding the Fourth Proportional to 556,839.82, 834,673.80 and 354,589.72

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Solution

The fourth proportional to 556,839.82, 834,673.80 and 354,589.72 is: 531,511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,839.82 : 834,673.80 = 354,589.72 : x
  2. Step 2: Convert to fraction form
    556,839.82/834,673.80 = 354,589.72/x
  3. Step 3: Cross multiply
    556,839.82x = 834,673.80 × 354,589.72
  4. Step 4: Simplify right side
    556,839.82x = 295,966,749,033.34
  5. Step 5: Solve for x
    x = 295,966,749,033.34/556,839.82
  6. Step 6: Final answer
    x = 531,511.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.