Home / 645,754.20-968,631.30-616,723.80

Finding the Fourth Proportional to 645,754.20, 968,631.30 and 616,723.80

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Solution

The fourth proportional to 645,754.20, 968,631.30 and 616,723.80 is: 925,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,754.20 : 968,631.30 = 616,723.80 : x
  2. Step 2: Convert to fraction form
    645,754.20/968,631.30 = 616,723.80/x
  3. Step 3: Cross multiply
    645,754.20x = 968,631.30 × 616,723.80
  4. Step 4: Simplify right side
    645,754.20x = 597,377,976,134.94
  5. Step 5: Solve for x
    x = 597,377,976,134.94/645,754.20
  6. Step 6: Final answer
    x = 925,085.70

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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.