Home / 615,945.86-923,921.06-189,478.73

Finding the Fourth Proportional to 615,945.86, 923,921.06 and 189,478.73

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Solution

The fourth proportional to 615,945.86, 923,921.06 and 189,478.73 is: 284,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,945.86 : 923,921.06 = 189,478.73 : x
  2. Step 2: Convert to fraction form
    615,945.86/923,921.06 = 189,478.73/x
  3. Step 3: Cross multiply
    615,945.86x = 923,921.06 × 189,478.73
  4. Step 4: Simplify right side
    615,945.86x = 175,063,383,502.06
  5. Step 5: Solve for x
    x = 175,063,383,502.06/615,945.86
  6. Step 6: Final answer
    x = 284,218.79

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Double scale
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Similar ratio
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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.