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Finding the Fourth Proportional to 323,555.85, 446,508.56 and 187,670.25

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Solution

The fourth proportional to 323,555.85, 446,508.56 and 187,670.25 is: 258,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,555.85 : 446,508.56 = 187,670.25 : x
  2. Step 2: Convert to fraction form
    323,555.85/446,508.56 = 187,670.25/x
  3. Step 3: Cross multiply
    323,555.85x = 446,508.56 × 187,670.25
  4. Step 4: Simplify right side
    323,555.85x = 83,796,372,143.99
  5. Step 5: Solve for x
    x = 83,796,372,143.99/323,555.85
  6. Step 6: Final answer
    x = 258,985.80

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1.5x scale

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.