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Finding the Fourth Proportional to 282,232.56, 389,488.32 and 161,393.52

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Solution

The fourth proportional to 282,232.56, 389,488.32 and 161,393.52 is: 222,727.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,232.56 : 389,488.32 = 161,393.52 : x
  2. Step 2: Convert to fraction form
    282,232.56/389,488.32 = 161,393.52/x
  3. Step 3: Cross multiply
    282,232.56x = 389,488.32 × 161,393.52
  4. Step 4: Simplify right side
    282,232.56x = 62,860,890,963.69
  5. Step 5: Solve for x
    x = 62,860,890,963.69/282,232.56
  6. Step 6: Final answer
    x = 222,727.28

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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.