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Finding the Fourth Proportional to 997,693.60, 1,494,898.80 and 576,234.40

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Solution

The fourth proportional to 997,693.60, 1,494,898.80 and 576,234.40 is: 863,403.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,693.60 : 1,494,898.80 = 576,234.40 : x
  2. Step 2: Convert to fraction form
    997,693.60/1,494,898.80 = 576,234.40/x
  3. Step 3: Cross multiply
    997,693.60x = 1,494,898.80 × 576,234.40
  4. Step 4: Simplify right side
    997,693.60x = 861,412,113,078.72
  5. Step 5: Solve for x
    x = 861,412,113,078.72/997,693.60
  6. Step 6: Final answer
    x = 863,403.47

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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.