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Finding the Fourth Proportional to 710,732.22, 980,808.84 and 404,808.54

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Solution

The fourth proportional to 710,732.22, 980,808.84 and 404,808.54 is: 558,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,732.22 : 980,808.84 = 404,808.54 : x
  2. Step 2: Convert to fraction form
    710,732.22/980,808.84 = 404,808.54/x
  3. Step 3: Cross multiply
    710,732.22x = 980,808.84 × 404,808.54
  4. Step 4: Simplify right side
    710,732.22x = 397,039,794,539.49
  5. Step 5: Solve for x
    x = 397,039,794,539.49/710,732.22
  6. Step 6: Final answer
    x = 558,634.86

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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.