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Finding the Fourth Proportional to 533,806.80, 736,647.12 and 292,086.60

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Solution

The fourth proportional to 533,806.80, 736,647.12 and 292,086.60 is: 403,076.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,806.80 : 736,647.12 = 292,086.60 : x
  2. Step 2: Convert to fraction form
    533,806.80/736,647.12 = 292,086.60/x
  3. Step 3: Cross multiply
    533,806.80x = 736,647.12 × 292,086.60
  4. Step 4: Simplify right side
    533,806.80x = 215,164,752,680.59
  5. Step 5: Solve for x
    x = 215,164,752,680.59/533,806.80
  6. Step 6: Final answer
    x = 403,076.08

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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.