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Finding the Fourth Proportional to 1,336,679.60, 1,844,616.14 and 724,831.34

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Solution

The fourth proportional to 1,336,679.60, 1,844,616.14 and 724,831.34 is: 1,000,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,679.60 : 1,844,616.14 = 724,831.34 : x
  2. Step 2: Convert to fraction form
    1,336,679.60/1,844,616.14 = 724,831.34/x
  3. Step 3: Cross multiply
    1,336,679.60x = 1,844,616.14 × 724,831.34
  4. Step 4: Simplify right side
    1,336,679.60x = 1,337,035,583,930.29
  5. Step 5: Solve for x
    x = 1,337,035,583,930.29/1,336,679.60
  6. Step 6: Final answer
    x = 1,000,266.32

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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.