Home / 805,310.38-1,111,299.99-442,731.61

Finding the Fourth Proportional to 805,310.38, 1,111,299.99 and 442,731.61

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Solution

The fourth proportional to 805,310.38, 1,111,299.99 and 442,731.61 is: 610,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,310.38 : 1,111,299.99 = 442,731.61 : x
  2. Step 2: Convert to fraction form
    805,310.38/1,111,299.99 = 442,731.61/x
  3. Step 3: Cross multiply
    805,310.38x = 1,111,299.99 × 442,731.61
  4. Step 4: Simplify right side
    805,310.38x = 492,007,628,209.18
  5. Step 5: Solve for x
    x = 492,007,628,209.18/805,310.38
  6. Step 6: Final answer
    x = 610,954.04

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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.