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Finding the Fourth Proportional to 615,491.30, 923,323.35 and 194,723.30

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Solution

The fourth proportional to 615,491.30, 923,323.35 and 194,723.30 is: 292,112.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,491.30 : 923,323.35 = 194,723.30 : x
  2. Step 2: Convert to fraction form
    615,491.30/923,323.35 = 194,723.30/x
  3. Step 3: Cross multiply
    615,491.30x = 923,323.35 × 194,723.30
  4. Step 4: Simplify right side
    615,491.30x = 179,792,569,679.06
  5. Step 5: Solve for x
    x = 179,792,569,679.06/615,491.30
  6. Step 6: Final answer
    x = 292,112.28

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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.