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Finding the Fourth Proportional to 536,876.87, 803,562.93 and 394,684.47

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Solution

The fourth proportional to 536,876.87, 803,562.93 and 394,684.47 is: 590,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,876.87 : 803,562.93 = 394,684.47 : x
  2. Step 2: Convert to fraction form
    536,876.87/803,562.93 = 394,684.47/x
  3. Step 3: Cross multiply
    536,876.87x = 803,562.93 × 394,684.47
  4. Step 4: Simplify right side
    536,876.87x = 317,153,809,138.70
  5. Step 5: Solve for x
    x = 317,153,809,138.70/536,876.87
  6. Step 6: Final answer
    x = 590,738.45

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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.