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Finding the Fourth Proportional to 573,040.80, 859,561.20 and 519,896.70

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Solution

The fourth proportional to 573,040.80, 859,561.20 and 519,896.70 is: 779,845.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,040.80 : 859,561.20 = 519,896.70 : x
  2. Step 2: Convert to fraction form
    573,040.80/859,561.20 = 519,896.70/x
  3. Step 3: Cross multiply
    573,040.80x = 859,561.20 × 519,896.70
  4. Step 4: Simplify right side
    573,040.80x = 446,883,031,328.04
  5. Step 5: Solve for x
    x = 446,883,031,328.04/573,040.80
  6. Step 6: Final answer
    x = 779,845.05

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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.