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Finding the Fourth Proportional to 692,087.82, 955,083.83 and 386,177.10

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Solution

The fourth proportional to 692,087.82, 955,083.83 and 386,177.10 is: 532,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,087.82 : 955,083.83 = 386,177.10 : x
  2. Step 2: Convert to fraction form
    692,087.82/955,083.83 = 386,177.10/x
  3. Step 3: Cross multiply
    692,087.82x = 955,083.83 × 386,177.10
  4. Step 4: Simplify right side
    692,087.82x = 368,831,498,213.84
  5. Step 5: Solve for x
    x = 368,831,498,213.84/692,087.82
  6. Step 6: Final answer
    x = 532,925.87

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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.