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Finding the Fourth Proportional to 996,672.23, 1,375,319.39 and 555,113.11

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Solution

The fourth proportional to 996,672.23, 1,375,319.39 and 555,113.11 is: 766,006.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,672.23 : 1,375,319.39 = 555,113.11 : x
  2. Step 2: Convert to fraction form
    996,672.23/1,375,319.39 = 555,113.11/x
  3. Step 3: Cross multiply
    996,672.23x = 1,375,319.39 × 555,113.11
  4. Step 4: Simplify right side
    996,672.23x = 763,457,823,826.20
  5. Step 5: Solve for x
    x = 763,457,823,826.20/996,672.23
  6. Step 6: Final answer
    x = 766,006.92

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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.