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Finding the Fourth Proportional to 615,304.24, 922,952.22 and 331,128.50

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Solution

The fourth proportional to 615,304.24, 922,952.22 and 331,128.50 is: 496,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,304.24 : 922,952.22 = 331,128.50 : x
  2. Step 2: Convert to fraction form
    615,304.24/922,952.22 = 331,128.50/x
  3. Step 3: Cross multiply
    615,304.24x = 922,952.22 × 331,128.50
  4. Step 4: Simplify right side
    615,304.24x = 305,615,784,180.27
  5. Step 5: Solve for x
    x = 305,615,784,180.27/615,304.24
  6. Step 6: Final answer
    x = 496,690.52

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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.