Home / 724,456.70-1,086,636.45-191,966.30

Finding the Fourth Proportional to 724,456.70, 1,086,636.45 and 191,966.30

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Solution

The fourth proportional to 724,456.70, 1,086,636.45 and 191,966.30 is: 287,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,456.70 : 1,086,636.45 = 191,966.30 : x
  2. Step 2: Convert to fraction form
    724,456.70/1,086,636.45 = 191,966.30/x
  3. Step 3: Cross multiply
    724,456.70x = 1,086,636.45 × 191,966.30
  4. Step 4: Simplify right side
    724,456.70x = 208,597,578,751.64
  5. Step 5: Solve for x
    x = 208,597,578,751.64/724,456.70
  6. Step 6: Final answer
    x = 287,936.57

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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.