Home / 698,104.09-963,383.07-396,298.09

Finding the Fourth Proportional to 698,104.09, 963,383.07 and 396,298.09

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Solution

The fourth proportional to 698,104.09, 963,383.07 and 396,298.09 is: 546,891.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,104.09 : 963,383.07 = 396,298.09 : x
  2. Step 2: Convert to fraction form
    698,104.09/963,383.07 = 396,298.09/x
  3. Step 3: Cross multiply
    698,104.09x = 963,383.07 × 396,298.09
  4. Step 4: Simplify right side
    698,104.09x = 381,786,870,579.34
  5. Step 5: Solve for x
    x = 381,786,870,579.34/698,104.09
  6. Step 6: Final answer
    x = 546,891.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.