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Finding the Fourth Proportional to 692,039.77, 955,013.56 and 386,097.96

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Solution

The fourth proportional to 692,039.77, 955,013.56 and 386,097.96 is: 532,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,039.77 : 955,013.56 = 386,097.96 : x
  2. Step 2: Convert to fraction form
    692,039.77/955,013.56 = 386,097.96/x
  3. Step 3: Cross multiply
    692,039.77x = 955,013.56 × 386,097.96
  4. Step 4: Simplify right side
    692,039.77x = 368,728,784,532.44
  5. Step 5: Solve for x
    x = 368,728,784,532.44/692,039.77
  6. Step 6: Final answer
    x = 532,814.44

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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.