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Finding the Fourth Proportional to 615,687.20, 923,444.40 and 195,005.60

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Solution

The fourth proportional to 615,687.20, 923,444.40 and 195,005.60 is: 292,481.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,687.20 : 923,444.40 = 195,005.60 : x
  2. Step 2: Convert to fraction form
    615,687.20/923,444.40 = 195,005.60/x
  3. Step 3: Cross multiply
    615,687.20x = 923,444.40 × 195,005.60
  4. Step 4: Simplify right side
    615,687.20x = 180,076,829,288.64
  5. Step 5: Solve for x
    x = 180,076,829,288.64/615,687.20
  6. Step 6: Final answer
    x = 292,481.03

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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.