Home / 686,941.26-948,037.16-381,116.04

Finding the Fourth Proportional to 686,941.26, 948,037.16 and 381,116.04

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Solution

The fourth proportional to 686,941.26, 948,037.16 and 381,116.04 is: 525,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,941.26 : 948,037.16 = 381,116.04 : x
  2. Step 2: Convert to fraction form
    686,941.26/948,037.16 = 381,116.04/x
  3. Step 3: Cross multiply
    686,941.26x = 948,037.16 × 381,116.04
  4. Step 4: Simplify right side
    686,941.26x = 361,312,165,589.70
  5. Step 5: Solve for x
    x = 361,312,165,589.70/686,941.26
  6. Step 6: Final answer
    x = 525,972.44

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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.