Home / 282,084.12-389,276.28-154,766.70

Finding the Fourth Proportional to 282,084.12, 389,276.28 and 154,766.70

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Solution

The fourth proportional to 282,084.12, 389,276.28 and 154,766.70 is: 213,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,084.12 : 389,276.28 = 154,766.70 : x
  2. Step 2: Convert to fraction form
    282,084.12/389,276.28 = 154,766.70/x
  3. Step 3: Cross multiply
    282,084.12x = 389,276.28 × 154,766.70
  4. Step 4: Simplify right side
    282,084.12x = 60,247,005,243.88
  5. Step 5: Solve for x
    x = 60,247,005,243.88/282,084.12
  6. Step 6: Final answer
    x = 213,578.15

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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.