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Finding the Fourth Proportional to 615,229.40, 922,671.30 and 194,634.20

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Solution

The fourth proportional to 615,229.40, 922,671.30 and 194,634.20 is: 291,896.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,229.40 : 922,671.30 = 194,634.20 : x
  2. Step 2: Convert to fraction form
    615,229.40/922,671.30 = 194,634.20/x
  3. Step 3: Cross multiply
    615,229.40x = 922,671.30 × 194,634.20
  4. Step 4: Simplify right side
    615,229.40x = 179,583,390,338.46
  5. Step 5: Solve for x
    x = 179,583,390,338.46/615,229.40
  6. Step 6: Final answer
    x = 291,896.63

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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.