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Finding the Fourth Proportional to 615,928.89, 923,895.47 and 189,461.82

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Solution

The fourth proportional to 615,928.89, 923,895.47 and 189,461.82 is: 284,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,928.89 : 923,895.47 = 189,461.82 : x
  2. Step 2: Convert to fraction form
    615,928.89/923,895.47 = 189,461.82/x
  3. Step 3: Cross multiply
    615,928.89x = 923,895.47 × 189,461.82
  4. Step 4: Simplify right side
    615,928.89x = 175,042,917,235.96
  5. Step 5: Solve for x
    x = 175,042,917,235.96/615,928.89
  6. Step 6: Final answer
    x = 284,193.39

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1.5x scale

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.