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Finding the Fourth Proportional to 1,284,793.80, 1,773,029.70 and 711,843

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Solution

The fourth proportional to 1,284,793.80, 1,773,029.70 and 711,843 is: 982,351.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,793.80 : 1,773,029.70 = 711,843 : x
  2. Step 2: Convert to fraction form
    1,284,793.80/1,773,029.70 = 711,843/x
  3. Step 3: Cross multiply
    1,284,793.80x = 1,773,029.70 × 711,843
  4. Step 4: Simplify right side
    1,284,793.80x = 1,262,118,780,737.10
  5. Step 5: Solve for x
    x = 1,262,118,780,737.10/1,284,793.80
  6. Step 6: Final answer
    x = 982,351.24

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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.