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Finding the Fourth Proportional to 615,977.20, 923,879.40 and 195,295.60

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Solution

The fourth proportional to 615,977.20, 923,879.40 and 195,295.60 is: 292,916.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,977.20 : 923,879.40 = 195,295.60 : x
  2. Step 2: Convert to fraction form
    615,977.20/923,879.40 = 195,295.60/x
  3. Step 3: Cross multiply
    615,977.20x = 923,879.40 × 195,295.60
  4. Step 4: Simplify right side
    615,977.20x = 180,429,581,750.64
  5. Step 5: Solve for x
    x = 180,429,581,750.64/615,977.20
  6. Step 6: Final answer
    x = 292,916.01

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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.