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Finding the Fourth Proportional to 258,049.60, 387,074.40 and 233,166.40

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Solution

The fourth proportional to 258,049.60, 387,074.40 and 233,166.40 is: 349,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,049.60 : 387,074.40 = 233,166.40 : x
  2. Step 2: Convert to fraction form
    258,049.60/387,074.40 = 233,166.40/x
  3. Step 3: Cross multiply
    258,049.60x = 387,074.40 × 233,166.40
  4. Step 4: Simplify right side
    258,049.60x = 90,252,744,380.16
  5. Step 5: Solve for x
    x = 90,252,744,380.16/258,049.60
  6. Step 6: Final answer
    x = 349,749.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.