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Finding the Fourth Proportional to 479,740.59, 662,041.67 and 275,831.37

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Solution

The fourth proportional to 479,740.59, 662,041.67 and 275,831.37 is: 380,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,740.59 : 662,041.67 = 275,831.37 : x
  2. Step 2: Convert to fraction form
    479,740.59/662,041.67 = 275,831.37/x
  3. Step 3: Cross multiply
    479,740.59x = 662,041.67 × 275,831.37
  4. Step 4: Simplify right side
    479,740.59x = 182,611,859,454.03
  5. Step 5: Solve for x
    x = 182,611,859,454.03/479,740.59
  6. Step 6: Final answer
    x = 380,647.09

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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.