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Finding the Fourth Proportional to 980,309.48, 1,470,713.70 and 575,843.71

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Solution

The fourth proportional to 980,309.48, 1,470,713.70 and 575,843.71 is: 863,912.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,309.48 : 1,470,713.70 = 575,843.71 : x
  2. Step 2: Convert to fraction form
    980,309.48/1,470,713.70 = 575,843.71/x
  3. Step 3: Cross multiply
    980,309.48x = 1,470,713.70 × 575,843.71
  4. Step 4: Simplify right side
    980,309.48x = 846,901,230,054.79
  5. Step 5: Solve for x
    x = 846,901,230,054.79/980,309.48
  6. Step 6: Final answer
    x = 863,912.11

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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.