Home / 691,457.46-954,141.57-385,505.07

Finding the Fourth Proportional to 691,457.46, 954,141.57 and 385,505.07

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Solution

The fourth proportional to 691,457.46, 954,141.57 and 385,505.07 is: 531,958.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,457.46 : 954,141.57 = 385,505.07 : x
  2. Step 2: Convert to fraction form
    691,457.46/954,141.57 = 385,505.07/x
  3. Step 3: Cross multiply
    691,457.46x = 954,141.57 × 385,505.07
  4. Step 4: Simplify right side
    691,457.46x = 367,826,412,732.76
  5. Step 5: Solve for x
    x = 367,826,412,732.76/691,457.46
  6. Step 6: Final answer
    x = 531,958.12

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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.