Home / 689,665.80-1,034,498.70-191,029.80

Finding the Fourth Proportional to 689,665.80, 1,034,498.70 and 191,029.80

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Solution

The fourth proportional to 689,665.80, 1,034,498.70 and 191,029.80 is: 286,544.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,665.80 : 1,034,498.70 = 191,029.80 : x
  2. Step 2: Convert to fraction form
    689,665.80/1,034,498.70 = 191,029.80/x
  3. Step 3: Cross multiply
    689,665.80x = 1,034,498.70 × 191,029.80
  4. Step 4: Simplify right side
    689,665.80x = 197,620,079,761.26
  5. Step 5: Solve for x
    x = 197,620,079,761.26/689,665.80
  6. Step 6: Final answer
    x = 286,544.70

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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.