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Finding the Fourth Proportional to 282,385.34, 389,732.58 and 169,218.62

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Solution

The fourth proportional to 282,385.34, 389,732.58 and 169,218.62 is: 233,546.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,385.34 : 389,732.58 = 169,218.62 : x
  2. Step 2: Convert to fraction form
    282,385.34/389,732.58 = 169,218.62/x
  3. Step 3: Cross multiply
    282,385.34x = 389,732.58 × 169,218.62
  4. Step 4: Simplify right side
    282,385.34x = 65,950,009,356.64
  5. Step 5: Solve for x
    x = 65,950,009,356.64/282,385.34
  6. Step 6: Final answer
    x = 233,546.15

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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.