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Finding the Fourth Proportional to 673,807.60, 1,010,711.40 and 496,660.60

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Solution

The fourth proportional to 673,807.60, 1,010,711.40 and 496,660.60 is: 744,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,807.60 : 1,010,711.40 = 496,660.60 : x
  2. Step 2: Convert to fraction form
    673,807.60/1,010,711.40 = 496,660.60/x
  3. Step 3: Cross multiply
    673,807.60x = 1,010,711.40 × 496,660.60
  4. Step 4: Simplify right side
    673,807.60x = 501,980,530,350.84
  5. Step 5: Solve for x
    x = 501,980,530,350.84/673,807.60
  6. Step 6: Final answer
    x = 744,990.90

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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.