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Finding the Fourth Proportional to 573,188.20, 859,782.30 and 514,139.20

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Solution

The fourth proportional to 573,188.20, 859,782.30 and 514,139.20 is: 771,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,188.20 : 859,782.30 = 514,139.20 : x
  2. Step 2: Convert to fraction form
    573,188.20/859,782.30 = 514,139.20/x
  3. Step 3: Cross multiply
    573,188.20x = 859,782.30 × 514,139.20
  4. Step 4: Simplify right side
    573,188.20x = 442,047,783,896.16
  5. Step 5: Solve for x
    x = 442,047,783,896.16/573,188.20
  6. Step 6: Final answer
    x = 771,208.80

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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.