Home / 678,505.65-1,022,523.69-611,122.13

Finding the Fourth Proportional to 678,505.65, 1,022,523.69 and 611,122.13

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Solution

The fourth proportional to 678,505.65, 1,022,523.69 and 611,122.13 is: 920,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,505.65 : 1,022,523.69 = 611,122.13 : x
  2. Step 2: Convert to fraction form
    678,505.65/1,022,523.69 = 611,122.13/x
  3. Step 3: Cross multiply
    678,505.65x = 1,022,523.69 × 611,122.13
  4. Step 4: Simplify right side
    678,505.65x = 624,886,856,798.13
  5. Step 5: Solve for x
    x = 624,886,856,798.13/678,505.65
  6. Step 6: Final answer
    x = 920,975.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.