Home / 939,654-1,296,723.43-509,934.22

Finding the Fourth Proportional to 939,654, 1,296,723.43 and 509,934.22

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Solution

The fourth proportional to 939,654, 1,296,723.43 and 509,934.22 is: 703,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,654 : 1,296,723.43 = 509,934.22 : x
  2. Step 2: Convert to fraction form
    939,654/1,296,723.43 = 509,934.22/x
  3. Step 3: Cross multiply
    939,654x = 1,296,723.43 × 509,934.22
  4. Step 4: Simplify right side
    939,654x = 661,243,648,228.38
  5. Step 5: Solve for x
    x = 661,243,648,228.38/939,654
  6. Step 6: Final answer
    x = 703,709.71

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Double scale
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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.