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Finding the Fourth Proportional to 573,786.47, 791,814.29 and 315,648.33

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Solution

The fourth proportional to 573,786.47, 791,814.29 and 315,648.33 is: 435,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,786.47 : 791,814.29 = 315,648.33 : x
  2. Step 2: Convert to fraction form
    573,786.47/791,814.29 = 315,648.33/x
  3. Step 3: Cross multiply
    573,786.47x = 791,814.29 × 315,648.33
  4. Step 4: Simplify right side
    573,786.47x = 249,934,856,730.39
  5. Step 5: Solve for x
    x = 249,934,856,730.39/573,786.47
  6. Step 6: Final answer
    x = 435,588.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.