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Finding the Fourth Proportional to 999,494.56, 1,379,335.08 and 546,785.56

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Solution

The fourth proportional to 999,494.56, 1,379,335.08 and 546,785.56 is: 754,581.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,494.56 : 1,379,335.08 = 546,785.56 : x
  2. Step 2: Convert to fraction form
    999,494.56/1,379,335.08 = 546,785.56/x
  3. Step 3: Cross multiply
    999,494.56x = 1,379,335.08 × 546,785.56
  4. Step 4: Simplify right side
    999,494.56x = 754,200,504,145.45
  5. Step 5: Solve for x
    x = 754,200,504,145.45/999,494.56
  6. Step 6: Final answer
    x = 754,581.90

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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.