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Finding the Fourth Proportional to 455,393.84, 628,180.05 and 294,248.90

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Solution

The fourth proportional to 455,393.84, 628,180.05 and 294,248.90 is: 405,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,393.84 : 628,180.05 = 294,248.90 : x
  2. Step 2: Convert to fraction form
    455,393.84/628,180.05 = 294,248.90/x
  3. Step 3: Cross multiply
    455,393.84x = 628,180.05 × 294,248.90
  4. Step 4: Simplify right side
    455,393.84x = 184,841,285,573.55
  5. Step 5: Solve for x
    x = 184,841,285,573.55/455,393.84
  6. Step 6: Final answer
    x = 405,893.25

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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.