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Finding the Fourth Proportional to 993,959.55, 1,489,559.95 and 452,893.54

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Solution

The fourth proportional to 993,959.55, 1,489,559.95 and 452,893.54 is: 678,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,959.55 : 1,489,559.95 = 452,893.54 : x
  2. Step 2: Convert to fraction form
    993,959.55/1,489,559.95 = 452,893.54/x
  3. Step 3: Cross multiply
    993,959.55x = 1,489,559.95 × 452,893.54
  4. Step 4: Simplify right side
    993,959.55x = 674,612,078,797.72
  5. Step 5: Solve for x
    x = 674,612,078,797.72/993,959.55
  6. Step 6: Final answer
    x = 678,711.80

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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.