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Finding the Fourth Proportional to 692,195.32, 955,227.74 and 386,268.45

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Solution

The fourth proportional to 692,195.32, 955,227.74 and 386,268.45 is: 533,049.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,195.32 : 955,227.74 = 386,268.45 : x
  2. Step 2: Convert to fraction form
    692,195.32/955,227.74 = 386,268.45/x
  3. Step 3: Cross multiply
    692,195.32x = 955,227.74 × 386,268.45
  4. Step 4: Simplify right side
    692,195.32x = 368,974,333,013.36
  5. Step 5: Solve for x
    x = 368,974,333,013.36/692,195.32
  6. Step 6: Final answer
    x = 533,049.45

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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.