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Finding the Fourth Proportional to 651,951, 899,880.02 and 393,786.92

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Solution

The fourth proportional to 651,951, 899,880.02 and 393,786.92 is: 543,539.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,951 : 899,880.02 = 393,786.92 : x
  2. Step 2: Convert to fraction form
    651,951/899,880.02 = 393,786.92/x
  3. Step 3: Cross multiply
    651,951x = 899,880.02 × 393,786.92
  4. Step 4: Simplify right side
    651,951x = 354,360,981,445.34
  5. Step 5: Solve for x
    x = 354,360,981,445.34/651,951
  6. Step 6: Final answer
    x = 543,539.29

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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.