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Finding the Fourth Proportional to 533,806.39, 736,580.28 and 318,900.97

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Solution

The fourth proportional to 533,806.39, 736,580.28 and 318,900.97 is: 440,040.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,806.39 : 736,580.28 = 318,900.97 : x
  2. Step 2: Convert to fraction form
    533,806.39/736,580.28 = 318,900.97/x
  3. Step 3: Cross multiply
    533,806.39x = 736,580.28 × 318,900.97
  4. Step 4: Simplify right side
    533,806.39x = 234,896,165,774.87
  5. Step 5: Solve for x
    x = 234,896,165,774.87/533,806.39
  6. Step 6: Final answer
    x = 440,040.00

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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.