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Finding the Fourth Proportional to 1,776,984.60, 2,664,699.30 and 711,672.60

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Solution

The fourth proportional to 1,776,984.60, 2,664,699.30 and 711,672.60 is: 1,067,197.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,984.60 : 2,664,699.30 = 711,672.60 : x
  2. Step 2: Convert to fraction form
    1,776,984.60/2,664,699.30 = 711,672.60/x
  3. Step 3: Cross multiply
    1,776,984.60x = 2,664,699.30 × 711,672.60
  4. Step 4: Simplify right side
    1,776,984.60x = 1,896,393,479,049.18
  5. Step 5: Solve for x
    x = 1,896,393,479,049.18/1,776,984.60
  6. Step 6: Final answer
    x = 1,067,197.48

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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.