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Finding the Fourth Proportional to 285,212.01, 393,859.31 and 183,414.27

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Solution

The fourth proportional to 285,212.01, 393,859.31 and 183,414.27 is: 253,283.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,212.01 : 393,859.31 = 183,414.27 : x
  2. Step 2: Convert to fraction form
    285,212.01/393,859.31 = 183,414.27/x
  3. Step 3: Cross multiply
    285,212.01x = 393,859.31 × 183,414.27
  4. Step 4: Simplify right side
    285,212.01x = 72,239,419,417.96
  5. Step 5: Solve for x
    x = 72,239,419,417.96/285,212.01
  6. Step 6: Final answer
    x = 253,283.23

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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.