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Finding the Fourth Proportional to 615,687.40, 923,559.90 and 194,996.20

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Solution

The fourth proportional to 615,687.40, 923,559.90 and 194,996.20 is: 292,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,687.40 : 923,559.90 = 194,996.20 : x
  2. Step 2: Convert to fraction form
    615,687.40/923,559.90 = 194,996.20/x
  3. Step 3: Cross multiply
    615,687.40x = 923,559.90 × 194,996.20
  4. Step 4: Simplify right side
    615,687.40x = 180,090,670,972.38
  5. Step 5: Solve for x
    x = 180,090,670,972.38/615,687.40
  6. Step 6: Final answer
    x = 292,503.42

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1.5x scale

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.