Home / 689,586.40-1,034,379.60-190,950.40

Finding the Fourth Proportional to 689,586.40, 1,034,379.60 and 190,950.40

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Solution

The fourth proportional to 689,586.40, 1,034,379.60 and 190,950.40 is: 286,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,586.40 : 1,034,379.60 = 190,950.40 : x
  2. Step 2: Convert to fraction form
    689,586.40/1,034,379.60 = 190,950.40/x
  3. Step 3: Cross multiply
    689,586.40x = 1,034,379.60 × 190,950.40
  4. Step 4: Simplify right side
    689,586.40x = 197,515,198,371.84
  5. Step 5: Solve for x
    x = 197,515,198,371.84/689,586.40
  6. Step 6: Final answer
    x = 286,425.60

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Double scale
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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.