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Finding the Fourth Proportional to 615,557.28, 923,428.08 and 194,693.28

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Solution

The fourth proportional to 615,557.28, 923,428.08 and 194,693.28 is: 292,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,557.28 : 923,428.08 = 194,693.28 : x
  2. Step 2: Convert to fraction form
    615,557.28/923,428.08 = 194,693.28/x
  3. Step 3: Cross multiply
    615,557.28x = 923,428.08 × 194,693.28
  4. Step 4: Simplify right side
    615,557.28x = 179,785,241,739.30
  5. Step 5: Solve for x
    x = 179,785,241,739.30/615,557.28
  6. Step 6: Final answer
    x = 292,069.07

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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.