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Finding the Fourth Proportional to 573,165.20, 859,747.80 and 518,052.80

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Solution

The fourth proportional to 573,165.20, 859,747.80 and 518,052.80 is: 777,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,165.20 : 859,747.80 = 518,052.80 : x
  2. Step 2: Convert to fraction form
    573,165.20/859,747.80 = 518,052.80/x
  3. Step 3: Cross multiply
    573,165.20x = 859,747.80 × 518,052.80
  4. Step 4: Simplify right side
    573,165.20x = 445,394,755,083.84
  5. Step 5: Solve for x
    x = 445,394,755,083.84/573,165.20
  6. Step 6: Final answer
    x = 777,079.20

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Double scale
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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.