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Finding the Fourth Proportional to 476,372.73, 657,370.20 and 282,788.73

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Solution

The fourth proportional to 476,372.73, 657,370.20 and 282,788.73 is: 390,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,372.73 : 657,370.20 = 282,788.73 : x
  2. Step 2: Convert to fraction form
    476,372.73/657,370.20 = 282,788.73/x
  3. Step 3: Cross multiply
    476,372.73x = 657,370.20 × 282,788.73
  4. Step 4: Simplify right side
    476,372.73x = 185,896,883,997.85
  5. Step 5: Solve for x
    x = 185,896,883,997.85/476,372.73
  6. Step 6: Final answer
    x = 390,234.10

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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.