Home / 738,617.88-1,019,293.14-399,086.04

Finding the Fourth Proportional to 738,617.88, 1,019,293.14 and 399,086.04

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Solution

The fourth proportional to 738,617.88, 1,019,293.14 and 399,086.04 is: 550,738.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,617.88 : 1,019,293.14 = 399,086.04 : x
  2. Step 2: Convert to fraction form
    738,617.88/1,019,293.14 = 399,086.04/x
  3. Step 3: Cross multiply
    738,617.88x = 1,019,293.14 × 399,086.04
  4. Step 4: Simplify right side
    738,617.88x = 406,785,662,841.77
  5. Step 5: Solve for x
    x = 406,785,662,841.77/738,617.88
  6. Step 6: Final answer
    x = 550,738.99

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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.