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Finding the Fourth Proportional to 647,595.27, 893,683.60 and 361,133.82

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Solution

The fourth proportional to 647,595.27, 893,683.60 and 361,133.82 is: 498,365.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,595.27 : 893,683.60 = 361,133.82 : x
  2. Step 2: Convert to fraction form
    647,595.27/893,683.60 = 361,133.82/x
  3. Step 3: Cross multiply
    647,595.27x = 893,683.60 × 361,133.82
  4. Step 4: Simplify right side
    647,595.27x = 322,739,371,436.52
  5. Step 5: Solve for x
    x = 322,739,371,436.52/647,595.27
  6. Step 6: Final answer
    x = 498,365.86

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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.