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Finding the Fourth Proportional to 615,559.28, 923,431.08 and 194,695.28

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Solution

The fourth proportional to 615,559.28, 923,431.08 and 194,695.28 is: 292,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,559.28 : 923,431.08 = 194,695.28 : x
  2. Step 2: Convert to fraction form
    615,559.28/923,431.08 = 194,695.28/x
  3. Step 3: Cross multiply
    615,559.28x = 923,431.08 × 194,695.28
  4. Step 4: Simplify right side
    615,559.28x = 179,787,672,681.30
  5. Step 5: Solve for x
    x = 179,787,672,681.30/615,559.28
  6. Step 6: Final answer
    x = 292,072.07

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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.