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Finding the Fourth Proportional to 284,528.97, 392,665.73 and 157,201.83

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Solution

The fourth proportional to 284,528.97, 392,665.73 and 157,201.83 is: 216,947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,528.97 : 392,665.73 = 157,201.83 : x
  2. Step 2: Convert to fraction form
    284,528.97/392,665.73 = 157,201.83/x
  3. Step 3: Cross multiply
    284,528.97x = 392,665.73 × 157,201.83
  4. Step 4: Simplify right side
    284,528.97x = 61,727,770,548.28
  5. Step 5: Solve for x
    x = 61,727,770,548.28/284,528.97
  6. Step 6: Final answer
    x = 216,947.23

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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.