Home / 645,934.20-968,901.30-616,903.80

Finding the Fourth Proportional to 645,934.20, 968,901.30 and 616,903.80

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Solution

The fourth proportional to 645,934.20, 968,901.30 and 616,903.80 is: 925,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,934.20 : 968,901.30 = 616,903.80 : x
  2. Step 2: Convert to fraction form
    645,934.20/968,901.30 = 616,903.80/x
  3. Step 3: Cross multiply
    645,934.20x = 968,901.30 × 616,903.80
  4. Step 4: Simplify right side
    645,934.20x = 597,718,893,794.94
  5. Step 5: Solve for x
    x = 597,718,893,794.94/645,934.20
  6. Step 6: Final answer
    x = 925,355.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.