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Finding the Fourth Proportional to 985,632.29, 1,479,809.94 and 681,276.71

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Solution

The fourth proportional to 985,632.29, 1,479,809.94 and 681,276.71 is: 1,022,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,632.29 : 1,479,809.94 = 681,276.71 : x
  2. Step 2: Convert to fraction form
    985,632.29/1,479,809.94 = 681,276.71/x
  3. Step 3: Cross multiply
    985,632.29x = 1,479,809.94 × 681,276.71
  4. Step 4: Simplify right side
    985,632.29x = 1,008,160,047,348.50
  5. Step 5: Solve for x
    x = 1,008,160,047,348.50/985,632.29
  6. Step 6: Final answer
    x = 1,022,856.15

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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.