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Finding the Fourth Proportional to 591,392.80, 887,215.56 and 217,415.80

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Solution

The fourth proportional to 591,392.80, 887,215.56 and 217,415.80 is: 326,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,392.80 : 887,215.56 = 217,415.80 : x
  2. Step 2: Convert to fraction form
    591,392.80/887,215.56 = 217,415.80/x
  3. Step 3: Cross multiply
    591,392.80x = 887,215.56 × 217,415.80
  4. Step 4: Simplify right side
    591,392.80x = 192,894,680,749.85
  5. Step 5: Solve for x
    x = 192,894,680,749.85/591,392.80
  6. Step 6: Final answer
    x = 326,170.15

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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.