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Finding the Fourth Proportional to 707,942.20, 993,607.40 and 707,942.20

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Solution

The fourth proportional to 707,942.20, 993,607.40 and 707,942.20 is: 993,607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,942.20 : 993,607.40 = 707,942.20 : x
  2. Step 2: Convert to fraction form
    707,942.20/993,607.40 = 707,942.20/x
  3. Step 3: Cross multiply
    707,942.20x = 993,607.40 × 707,942.20
  4. Step 4: Simplify right side
    707,942.20x = 703,416,608,692.28
  5. Step 5: Solve for x
    x = 703,416,608,692.28/707,942.20
  6. Step 6: Final answer
    x = 993,607.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.