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Finding the Fourth Proportional to 326,067.40, 489,101.10 and 168,603.40

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Solution

The fourth proportional to 326,067.40, 489,101.10 and 168,603.40 is: 252,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,067.40 : 489,101.10 = 168,603.40 : x
  2. Step 2: Convert to fraction form
    326,067.40/489,101.10 = 168,603.40/x
  3. Step 3: Cross multiply
    326,067.40x = 489,101.10 × 168,603.40
  4. Step 4: Simplify right side
    326,067.40x = 82,464,108,403.74
  5. Step 5: Solve for x
    x = 82,464,108,403.74/326,067.40
  6. Step 6: Final answer
    x = 252,905.10

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Similar ratio
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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.