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Finding the Fourth Proportional to 459,405.32, 633,928.60 and 275,634.12

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Solution

The fourth proportional to 459,405.32, 633,928.60 and 275,634.12 is: 380,344.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,405.32 : 633,928.60 = 275,634.12 : x
  2. Step 2: Convert to fraction form
    459,405.32/633,928.60 = 275,634.12/x
  3. Step 3: Cross multiply
    459,405.32x = 633,928.60 × 275,634.12
  4. Step 4: Simplify right side
    459,405.32x = 174,732,351,803.83
  5. Step 5: Solve for x
    x = 174,732,351,803.83/459,405.32
  6. Step 6: Final answer
    x = 380,344.64

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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.