Home / 626,778.27-864,999.81-351,160.38

Finding the Fourth Proportional to 626,778.27, 864,999.81 and 351,160.38

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Solution

The fourth proportional to 626,778.27, 864,999.81 and 351,160.38 is: 484,626.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,778.27 : 864,999.81 = 351,160.38 : x
  2. Step 2: Convert to fraction form
    626,778.27/864,999.81 = 351,160.38/x
  3. Step 3: Cross multiply
    626,778.27x = 864,999.81 × 351,160.38
  4. Step 4: Simplify right side
    626,778.27x = 303,753,661,979.53
  5. Step 5: Solve for x
    x = 303,753,661,979.53/626,778.27
  6. Step 6: Final answer
    x = 484,626.98

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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.