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Finding the Fourth Proportional to 483,578.40, 725,194.80 and 217,466.40

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Solution

The fourth proportional to 483,578.40, 725,194.80 and 217,466.40 is: 326,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,578.40 : 725,194.80 = 217,466.40 : x
  2. Step 2: Convert to fraction form
    483,578.40/725,194.80 = 217,466.40/x
  3. Step 3: Cross multiply
    483,578.40x = 725,194.80 × 217,466.40
  4. Step 4: Simplify right side
    483,578.40x = 157,705,502,454.72
  5. Step 5: Solve for x
    x = 157,705,502,454.72/483,578.40
  6. Step 6: Final answer
    x = 326,121.89

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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.