Home / 645,571.35-968,475.23-266,285.17

Finding the Fourth Proportional to 645,571.35, 968,475.23 and 266,285.17

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Solution

The fourth proportional to 645,571.35, 968,475.23 and 266,285.17 is: 399,476.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,571.35 : 968,475.23 = 266,285.17 : x
  2. Step 2: Convert to fraction form
    645,571.35/968,475.23 = 266,285.17/x
  3. Step 3: Cross multiply
    645,571.35x = 968,475.23 × 266,285.17
  4. Step 4: Simplify right side
    645,571.35x = 257,890,593,137.65
  5. Step 5: Solve for x
    x = 257,890,593,137.65/645,571.35
  6. Step 6: Final answer
    x = 399,476.52

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Double scale
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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.