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Finding the Fourth Proportional to 573,081.40, 859,622.10 and 274,145.84

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Solution

The fourth proportional to 573,081.40, 859,622.10 and 274,145.84 is: 411,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,081.40 : 859,622.10 = 274,145.84 : x
  2. Step 2: Convert to fraction form
    573,081.40/859,622.10 = 274,145.84/x
  3. Step 3: Cross multiply
    573,081.40x = 859,622.10 × 274,145.84
  4. Step 4: Simplify right side
    573,081.40x = 235,661,822,687.06
  5. Step 5: Solve for x
    x = 235,661,822,687.06/573,081.40
  6. Step 6: Final answer
    x = 411,218.76

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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.