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Finding the Fourth Proportional to 663,594.24, 995,022.08 and 393,832

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Solution

The fourth proportional to 663,594.24, 995,022.08 and 393,832 is: 590,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,594.24 : 995,022.08 = 393,832 : x
  2. Step 2: Convert to fraction form
    663,594.24/995,022.08 = 393,832/x
  3. Step 3: Cross multiply
    663,594.24x = 995,022.08 × 393,832
  4. Step 4: Simplify right side
    663,594.24x = 391,871,535,810.56
  5. Step 5: Solve for x
    x = 391,871,535,810.56/663,594.24
  6. Step 6: Final answer
    x = 590,528.84

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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.