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Finding the Fourth Proportional to 524,528.33, 783,806.50 and 393,845.20

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Solution

The fourth proportional to 524,528.33, 783,806.50 and 393,845.20 is: 588,525.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,528.33 : 783,806.50 = 393,845.20 : x
  2. Step 2: Convert to fraction form
    524,528.33/783,806.50 = 393,845.20/x
  3. Step 3: Cross multiply
    524,528.33x = 783,806.50 × 393,845.20
  4. Step 4: Simplify right side
    524,528.33x = 308,698,421,865.54
  5. Step 5: Solve for x
    x = 308,698,421,865.54/524,528.33
  6. Step 6: Final answer
    x = 588,525.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.