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Finding the Fourth Proportional to 523,141.26, 782,672.37 and 458,586.95

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Solution

The fourth proportional to 523,141.26, 782,672.37 and 458,586.95 is: 686,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,141.26 : 782,672.37 = 458,586.95 : x
  2. Step 2: Convert to fraction form
    523,141.26/782,672.37 = 458,586.95/x
  3. Step 3: Cross multiply
    523,141.26x = 782,672.37 × 458,586.95
  4. Step 4: Simplify right side
    523,141.26x = 358,923,331,094.21
  5. Step 5: Solve for x
    x = 358,923,331,094.21/523,141.26
  6. Step 6: Final answer
    x = 686,092.57

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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.