Home / 919,072.03-1,268,230.55-531,810.20

Finding the Fourth Proportional to 919,072.03, 1,268,230.55 and 531,810.20

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Solution

The fourth proportional to 919,072.03, 1,268,230.55 and 531,810.20 is: 733,846.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,072.03 : 1,268,230.55 = 531,810.20 : x
  2. Step 2: Convert to fraction form
    919,072.03/1,268,230.55 = 531,810.20/x
  3. Step 3: Cross multiply
    919,072.03x = 1,268,230.55 × 531,810.20
  4. Step 4: Simplify right side
    919,072.03x = 674,457,942,441.61
  5. Step 5: Solve for x
    x = 674,457,942,441.61/919,072.03
  6. Step 6: Final answer
    x = 733,846.66

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Double scale
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Similar ratio
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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.