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Finding the Fourth Proportional to 504,638.72, 696,435.84 and 292,670.72

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Solution

The fourth proportional to 504,638.72, 696,435.84 and 292,670.72 is: 403,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,638.72 : 696,435.84 = 292,670.72 : x
  2. Step 2: Convert to fraction form
    504,638.72/696,435.84 = 292,670.72/x
  3. Step 3: Cross multiply
    504,638.72x = 696,435.84 × 292,670.72
  4. Step 4: Simplify right side
    504,638.72x = 203,826,378,726.61
  5. Step 5: Solve for x
    x = 203,826,378,726.61/504,638.72
  6. Step 6: Final answer
    x = 403,905.55

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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.