Home / 824,809.20-1,236,910.32-284,928.08

Finding the Fourth Proportional to 824,809.20, 1,236,910.32 and 284,928.08

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Solution

The fourth proportional to 824,809.20, 1,236,910.32 and 284,928.08 is: 427,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,809.20 : 1,236,910.32 = 284,928.08 : x
  2. Step 2: Convert to fraction form
    824,809.20/1,236,910.32 = 284,928.08/x
  3. Step 3: Cross multiply
    824,809.20x = 1,236,910.32 × 284,928.08
  4. Step 4: Simplify right side
    824,809.20x = 352,430,482,609.79
  5. Step 5: Solve for x
    x = 352,430,482,609.79/824,809.20
  6. Step 6: Final answer
    x = 427,287.28

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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.