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Finding the Fourth Proportional to 282,504.73, 389,859.38 and 153,444.45

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Solution

The fourth proportional to 282,504.73, 389,859.38 and 153,444.45 is: 211,754.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,504.73 : 389,859.38 = 153,444.45 : x
  2. Step 2: Convert to fraction form
    282,504.73/389,859.38 = 153,444.45/x
  3. Step 3: Cross multiply
    282,504.73x = 389,859.38 × 153,444.45
  4. Step 4: Simplify right side
    282,504.73x = 59,821,758,141.44
  5. Step 5: Solve for x
    x = 59,821,758,141.44/282,504.73
  6. Step 6: Final answer
    x = 211,754.89

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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.