Home / 686,919.27-948,062.07-381,094.18

Finding the Fourth Proportional to 686,919.27, 948,062.07 and 381,094.18

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Solution

The fourth proportional to 686,919.27, 948,062.07 and 381,094.18 is: 525,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,919.27 : 948,062.07 = 381,094.18 : x
  2. Step 2: Convert to fraction form
    686,919.27/948,062.07 = 381,094.18/x
  3. Step 3: Cross multiply
    686,919.27x = 948,062.07 × 381,094.18
  4. Step 4: Simplify right side
    686,919.27x = 361,300,934,785.60
  5. Step 5: Solve for x
    x = 361,300,934,785.60/686,919.27
  6. Step 6: Final answer
    x = 525,972.92

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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.