Home / 783,419.76-1,175,129.64-192,443.76

Finding the Fourth Proportional to 783,419.76, 1,175,129.64 and 192,443.76

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Solution

The fourth proportional to 783,419.76, 1,175,129.64 and 192,443.76 is: 288,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,419.76 : 1,175,129.64 = 192,443.76 : x
  2. Step 2: Convert to fraction form
    783,419.76/1,175,129.64 = 192,443.76/x
  3. Step 3: Cross multiply
    783,419.76x = 1,175,129.64 × 192,443.76
  4. Step 4: Simplify right side
    783,419.76x = 226,146,366,409.05
  5. Step 5: Solve for x
    x = 226,146,366,409.05/783,419.76
  6. Step 6: Final answer
    x = 288,665.64

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Double scale
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Similar ratio
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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.