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Finding the Fourth Proportional to 978,446.28, 1,350,403.46 and 596,694.50

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Solution

The fourth proportional to 978,446.28, 1,350,403.46 and 596,694.50 is: 823,528.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,446.28 : 1,350,403.46 = 596,694.50 : x
  2. Step 2: Convert to fraction form
    978,446.28/1,350,403.46 = 596,694.50/x
  3. Step 3: Cross multiply
    978,446.28x = 1,350,403.46 × 596,694.50
  4. Step 4: Simplify right side
    978,446.28x = 805,778,318,285.50
  5. Step 5: Solve for x
    x = 805,778,318,285.50/978,446.28
  6. Step 6: Final answer
    x = 823,528.42

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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.