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Finding the Fourth Proportional to 611,443.04, 843,793.56 and 339,511.44

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Solution

The fourth proportional to 611,443.04, 843,793.56 and 339,511.44 is: 468,526.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,443.04 : 843,793.56 = 339,511.44 : x
  2. Step 2: Convert to fraction form
    611,443.04/843,793.56 = 339,511.44/x
  3. Step 3: Cross multiply
    611,443.04x = 843,793.56 × 339,511.44
  4. Step 4: Simplify right side
    611,443.04x = 286,477,566,618.33
  5. Step 5: Solve for x
    x = 286,477,566,618.33/611,443.04
  6. Step 6: Final answer
    x = 468,526.99

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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.