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Finding the Fourth Proportional to 615,881.55, 923,469.57 and 189,306.39

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Solution

The fourth proportional to 615,881.55, 923,469.57 and 189,306.39 is: 283,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,881.55 : 923,469.57 = 189,306.39 : x
  2. Step 2: Convert to fraction form
    615,881.55/923,469.57 = 189,306.39/x
  3. Step 3: Cross multiply
    615,881.55x = 923,469.57 × 189,306.39
  4. Step 4: Simplify right side
    615,881.55x = 174,818,690,571.55
  5. Step 5: Solve for x
    x = 174,818,690,571.55/615,881.55
  6. Step 6: Final answer
    x = 283,851.16

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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.