Home / 786,050.75-1,083,979.42-499,072.61

Finding the Fourth Proportional to 786,050.75, 1,083,979.42 and 499,072.61

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Solution

The fourth proportional to 786,050.75, 1,083,979.42 and 499,072.61 is: 688,230.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,050.75 : 1,083,979.42 = 499,072.61 : x
  2. Step 2: Convert to fraction form
    786,050.75/1,083,979.42 = 499,072.61/x
  3. Step 3: Cross multiply
    786,050.75x = 1,083,979.42 × 499,072.61
  4. Step 4: Simplify right side
    786,050.75x = 540,984,438,325.69
  5. Step 5: Solve for x
    x = 540,984,438,325.69/786,050.75
  6. Step 6: Final answer
    x = 688,230.93

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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.