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Finding the Fourth Proportional to 615,698.80, 923,634.60 and 194,930.80

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Solution

The fourth proportional to 615,698.80, 923,634.60 and 194,930.80 is: 292,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,698.80 : 923,634.60 = 194,930.80 : x
  2. Step 2: Convert to fraction form
    615,698.80/923,634.60 = 194,930.80/x
  3. Step 3: Cross multiply
    615,698.80x = 923,634.60 × 194,930.80
  4. Step 4: Simplify right side
    615,698.80x = 180,044,831,485.68
  5. Step 5: Solve for x
    x = 180,044,831,485.68/615,698.80
  6. Step 6: Final answer
    x = 292,423.55

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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.