Home / 1,040,817.89-1,436,726.21-678,331.14

Finding the Fourth Proportional to 1,040,817.89, 1,436,726.21 and 678,331.14

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Solution

The fourth proportional to 1,040,817.89, 1,436,726.21 and 678,331.14 is: 936,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,817.89 : 1,436,726.21 = 678,331.14 : x
  2. Step 2: Convert to fraction form
    1,040,817.89/1,436,726.21 = 678,331.14/x
  3. Step 3: Cross multiply
    1,040,817.89x = 1,436,726.21 × 678,331.14
  4. Step 4: Simplify right side
    1,040,817.89x = 974,576,124,505.52
  5. Step 5: Solve for x
    x = 974,576,124,505.52/1,040,817.89
  6. Step 6: Final answer
    x = 936,356.05

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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.