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Finding the Fourth Proportional to 829,794.80, 1,242,723.90 and 829,794.80

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Solution

The fourth proportional to 829,794.80, 1,242,723.90 and 829,794.80 is: 1,242,723.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,794.80 : 1,242,723.90 = 829,794.80 : x
  2. Step 2: Convert to fraction form
    829,794.80/1,242,723.90 = 829,794.80/x
  3. Step 3: Cross multiply
    829,794.80x = 1,242,723.90 × 829,794.80
  4. Step 4: Simplify right side
    829,794.80x = 1,031,205,830,055.72
  5. Step 5: Solve for x
    x = 1,031,205,830,055.72/829,794.80
  6. Step 6: Final answer
    x = 1,242,723.90

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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.