Home / 689,672.55-1,034,508.83-191,036.55

Finding the Fourth Proportional to 689,672.55, 1,034,508.83 and 191,036.55

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Solution

The fourth proportional to 689,672.55, 1,034,508.83 and 191,036.55 is: 286,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,672.55 : 1,034,508.83 = 191,036.55 : x
  2. Step 2: Convert to fraction form
    689,672.55/1,034,508.83 = 191,036.55/x
  3. Step 3: Cross multiply
    689,672.55x = 1,034,508.83 × 191,036.55
  4. Step 4: Simplify right side
    689,672.55x = 197,628,996,872.55
  5. Step 5: Solve for x
    x = 197,628,996,872.55/689,672.55
  6. Step 6: Final answer
    x = 286,554.83

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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.