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Finding the Fourth Proportional to 394,678.40, 592,017.60 and 173,062.40

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Solution

The fourth proportional to 394,678.40, 592,017.60 and 173,062.40 is: 259,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,678.40 : 592,017.60 = 173,062.40 : x
  2. Step 2: Convert to fraction form
    394,678.40/592,017.60 = 173,062.40/x
  3. Step 3: Cross multiply
    394,678.40x = 592,017.60 × 173,062.40
  4. Step 4: Simplify right side
    394,678.40x = 102,455,986,698.24
  5. Step 5: Solve for x
    x = 102,455,986,698.24/394,678.40
  6. Step 6: Final answer
    x = 259,593.60

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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.