Home / 1,431,084.81-1,974,944.40-786,527.85

Finding the Fourth Proportional to 1,431,084.81, 1,974,944.40 and 786,527.85

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Solution

The fourth proportional to 1,431,084.81, 1,974,944.40 and 786,527.85 is: 1,085,434.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,084.81 : 1,974,944.40 = 786,527.85 : x
  2. Step 2: Convert to fraction form
    1,431,084.81/1,974,944.40 = 786,527.85/x
  3. Step 3: Cross multiply
    1,431,084.81x = 1,974,944.40 × 786,527.85
  4. Step 4: Simplify right side
    1,431,084.81x = 1,553,348,772,801.54
  5. Step 5: Solve for x
    x = 1,553,348,772,801.54/1,431,084.81
  6. Step 6: Final answer
    x = 1,085,434.46

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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.