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Finding the Fourth Proportional to 919,488.80, 1,376,608.80 and 893,244.80

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Solution

The fourth proportional to 919,488.80, 1,376,608.80 and 893,244.80 is: 1,337,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,488.80 : 1,376,608.80 = 893,244.80 : x
  2. Step 2: Convert to fraction form
    919,488.80/1,376,608.80 = 893,244.80/x
  3. Step 3: Cross multiply
    919,488.80x = 1,376,608.80 × 893,244.80
  4. Step 4: Simplify right side
    919,488.80x = 1,229,648,652,234.24
  5. Step 5: Solve for x
    x = 1,229,648,652,234.24/919,488.80
  6. Step 6: Final answer
    x = 1,337,317.71

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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.