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Finding the Fourth Proportional to 559,540.30, 839,310.45 and 483,432.70

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Solution

The fourth proportional to 559,540.30, 839,310.45 and 483,432.70 is: 725,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,540.30 : 839,310.45 = 483,432.70 : x
  2. Step 2: Convert to fraction form
    559,540.30/839,310.45 = 483,432.70/x
  3. Step 3: Cross multiply
    559,540.30x = 839,310.45 × 483,432.70
  4. Step 4: Simplify right side
    559,540.30x = 405,750,116,981.72
  5. Step 5: Solve for x
    x = 405,750,116,981.72/559,540.30
  6. Step 6: Final answer
    x = 725,149.05

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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.