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Finding the Fourth Proportional to 835,978.89, 1,153,651.11 and 454,005.57

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Solution

The fourth proportional to 835,978.89, 1,153,651.11 and 454,005.57 is: 626,527.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,978.89 : 1,153,651.11 = 454,005.57 : x
  2. Step 2: Convert to fraction form
    835,978.89/1,153,651.11 = 454,005.57/x
  3. Step 3: Cross multiply
    835,978.89x = 1,153,651.11 × 454,005.57
  4. Step 4: Simplify right side
    835,978.89x = 523,764,029,776.68
  5. Step 5: Solve for x
    x = 523,764,029,776.68/835,978.89
  6. Step 6: Final answer
    x = 626,527.82

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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.