Home / 581,202.84-870,976.21-428,196.56

Finding the Fourth Proportional to 581,202.84, 870,976.21 and 428,196.56

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Solution

The fourth proportional to 581,202.84, 870,976.21 and 428,196.56 is: 641,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,202.84 : 870,976.21 = 428,196.56 : x
  2. Step 2: Convert to fraction form
    581,202.84/870,976.21 = 428,196.56/x
  3. Step 3: Cross multiply
    581,202.84x = 870,976.21 × 428,196.56
  4. Step 4: Simplify right side
    581,202.84x = 372,949,017,240.58
  5. Step 5: Solve for x
    x = 372,949,017,240.58/581,202.84
  6. Step 6: Final answer
    x = 641,684.78

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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.