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Finding the Fourth Proportional to 611,532.32, 843,876.96 and 339,583.64

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Solution

The fourth proportional to 611,532.32, 843,876.96 and 339,583.64 is: 468,604.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,532.32 : 843,876.96 = 339,583.64 : x
  2. Step 2: Convert to fraction form
    611,532.32/843,876.96 = 339,583.64/x
  3. Step 3: Cross multiply
    611,532.32x = 843,876.96 × 339,583.64
  4. Step 4: Simplify right side
    611,532.32x = 286,566,809,788.93
  5. Step 5: Solve for x
    x = 286,566,809,788.93/611,532.32
  6. Step 6: Final answer
    x = 468,604.52

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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.