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Finding the Fourth Proportional to 530,540.70, 795,811.05 and 520,043.10

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Solution

The fourth proportional to 530,540.70, 795,811.05 and 520,043.10 is: 780,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,540.70 : 795,811.05 = 520,043.10 : x
  2. Step 2: Convert to fraction form
    530,540.70/795,811.05 = 520,043.10/x
  3. Step 3: Cross multiply
    530,540.70x = 795,811.05 × 520,043.10
  4. Step 4: Simplify right side
    530,540.70x = 413,856,045,456.26
  5. Step 5: Solve for x
    x = 413,856,045,456.26/530,540.70
  6. Step 6: Final answer
    x = 780,064.65

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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.