Home / 738,568.38-1,019,224.71-399,036.54

Finding the Fourth Proportional to 738,568.38, 1,019,224.71 and 399,036.54

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Solution

The fourth proportional to 738,568.38, 1,019,224.71 and 399,036.54 is: 550,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,568.38 : 1,019,224.71 = 399,036.54 : x
  2. Step 2: Convert to fraction form
    738,568.38/1,019,224.71 = 399,036.54/x
  3. Step 3: Cross multiply
    738,568.38x = 1,019,224.71 × 399,036.54
  4. Step 4: Simplify right side
    738,568.38x = 406,707,901,760.90
  5. Step 5: Solve for x
    x = 406,707,901,760.90/738,568.38
  6. Step 6: Final answer
    x = 550,670.61

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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.