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Finding the Fourth Proportional to 576,908.70, 865,363.05 and 514,239.90

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Solution

The fourth proportional to 576,908.70, 865,363.05 and 514,239.90 is: 771,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,908.70 : 865,363.05 = 514,239.90 : x
  2. Step 2: Convert to fraction form
    576,908.70/865,363.05 = 514,239.90/x
  3. Step 3: Cross multiply
    576,908.70x = 865,363.05 × 514,239.90
  4. Step 4: Simplify right side
    576,908.70x = 445,004,208,295.70
  5. Step 5: Solve for x
    x = 445,004,208,295.70/576,908.70
  6. Step 6: Final answer
    x = 771,359.85

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Similar ratio
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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.