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Finding the Fourth Proportional to 323,729.16, 446,778.90 and 187,804.68

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Solution

The fourth proportional to 323,729.16, 446,778.90 and 187,804.68 is: 259,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,729.16 : 446,778.90 = 187,804.68 : x
  2. Step 2: Convert to fraction form
    323,729.16/446,778.90 = 187,804.68/x
  3. Step 3: Cross multiply
    323,729.16x = 446,778.90 × 187,804.68
  4. Step 4: Simplify right side
    323,729.16x = 83,907,168,345.25
  5. Step 5: Solve for x
    x = 83,907,168,345.25/323,729.16
  6. Step 6: Final answer
    x = 259,189.40

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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.