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Finding the Fourth Proportional to 282,381.32, 389,685.41 and 169,204.07

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Solution

The fourth proportional to 282,381.32, 389,685.41 and 169,204.07 is: 233,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,381.32 : 389,685.41 = 169,204.07 : x
  2. Step 2: Convert to fraction form
    282,381.32/389,685.41 = 169,204.07/x
  3. Step 3: Cross multiply
    282,381.32x = 389,685.41 × 169,204.07
  4. Step 4: Simplify right side
    282,381.32x = 65,936,357,391.62
  5. Step 5: Solve for x
    x = 65,936,357,391.62/282,381.32
  6. Step 6: Final answer
    x = 233,501.13

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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.