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Finding the Fourth Proportional to 591,760.40, 887,203.20 and 325,821.20

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Solution

The fourth proportional to 591,760.40, 887,203.20 and 325,821.20 is: 488,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,760.40 : 887,203.20 = 325,821.20 : x
  2. Step 2: Convert to fraction form
    591,760.40/887,203.20 = 325,821.20/x
  3. Step 3: Cross multiply
    591,760.40x = 887,203.20 × 325,821.20
  4. Step 4: Simplify right side
    591,760.40x = 289,069,611,267.84
  5. Step 5: Solve for x
    x = 289,069,611,267.84/591,760.40
  6. Step 6: Final answer
    x = 488,490.97

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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.