Home / 938,843.64-1,295,604.52-509,123.64

Finding the Fourth Proportional to 938,843.64, 1,295,604.52 and 509,123.64

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Solution

The fourth proportional to 938,843.64, 1,295,604.52 and 509,123.64 is: 702,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,843.64 : 1,295,604.52 = 509,123.64 : x
  2. Step 2: Convert to fraction form
    938,843.64/1,295,604.52 = 509,123.64/x
  3. Step 3: Cross multiply
    938,843.64x = 1,295,604.52 × 509,123.64
  4. Step 4: Simplify right side
    938,843.64x = 659,622,889,222.85
  5. Step 5: Solve for x
    x = 659,622,889,222.85/938,843.64
  6. Step 6: Final answer
    x = 702,590.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.