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Finding the Fourth Proportional to 362,688.78, 500,515.04 and 199,363.11

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Solution

The fourth proportional to 362,688.78, 500,515.04 and 199,363.11 is: 275,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,688.78 : 500,515.04 = 199,363.11 : x
  2. Step 2: Convert to fraction form
    362,688.78/500,515.04 = 199,363.11/x
  3. Step 3: Cross multiply
    362,688.78x = 500,515.04 × 199,363.11
  4. Step 4: Simplify right side
    362,688.78x = 99,784,234,976.17
  5. Step 5: Solve for x
    x = 99,784,234,976.17/362,688.78
  6. Step 6: Final answer
    x = 275,123.58

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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.