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Finding the Fourth Proportional to 508,662.15, 701,928.38 and 293,789.40

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Solution

The fourth proportional to 508,662.15, 701,928.38 and 293,789.40 is: 405,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,662.15 : 701,928.38 = 293,789.40 : x
  2. Step 2: Convert to fraction form
    508,662.15/701,928.38 = 293,789.40/x
  3. Step 3: Cross multiply
    508,662.15x = 701,928.38 × 293,789.40
  4. Step 4: Simplify right side
    508,662.15x = 206,219,117,603.17
  5. Step 5: Solve for x
    x = 206,219,117,603.17/508,662.15
  6. Step 6: Final answer
    x = 405,414.71

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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.