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Finding the Fourth Proportional to 615,914.22, 923,890.78 and 195,193.74

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Solution

The fourth proportional to 615,914.22, 923,890.78 and 195,193.74 is: 292,796.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,914.22 : 923,890.78 = 195,193.74 : x
  2. Step 2: Convert to fraction form
    615,914.22/923,890.78 = 195,193.74/x
  3. Step 3: Cross multiply
    615,914.22x = 923,890.78 × 195,193.74
  4. Step 4: Simplify right side
    615,914.22x = 180,337,696,699.72
  5. Step 5: Solve for x
    x = 180,337,696,699.72/615,914.22
  6. Step 6: Final answer
    x = 292,796.77

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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.