Home / 685,814.41-946,219.12-443,713.51

Finding the Fourth Proportional to 685,814.41, 946,219.12 and 443,713.51

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Solution

The fourth proportional to 685,814.41, 946,219.12 and 443,713.51 is: 612,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,814.41 : 946,219.12 = 443,713.51 : x
  2. Step 2: Convert to fraction form
    685,814.41/946,219.12 = 443,713.51/x
  3. Step 3: Cross multiply
    685,814.41x = 946,219.12 × 443,713.51
  4. Step 4: Simplify right side
    685,814.41x = 419,850,206,964.31
  5. Step 5: Solve for x
    x = 419,850,206,964.31/685,814.41
  6. Step 6: Final answer
    x = 612,192.16

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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.