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Finding the Fourth Proportional to 647,276.82, 893,204.91 and 360,787.02

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Solution

The fourth proportional to 647,276.82, 893,204.91 and 360,787.02 is: 497,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,276.82 : 893,204.91 = 360,787.02 : x
  2. Step 2: Convert to fraction form
    647,276.82/893,204.91 = 360,787.02/x
  3. Step 3: Cross multiply
    647,276.82x = 893,204.91 × 360,787.02
  4. Step 4: Simplify right side
    647,276.82x = 322,256,737,728.27
  5. Step 5: Solve for x
    x = 322,256,737,728.27/647,276.82
  6. Step 6: Final answer
    x = 497,865.41

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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.