Home / 697,936.70-963,084.63-391,943.51

Finding the Fourth Proportional to 697,936.70, 963,084.63 and 391,943.51

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Solution

The fourth proportional to 697,936.70, 963,084.63 and 391,943.51 is: 540,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,936.70 : 963,084.63 = 391,943.51 : x
  2. Step 2: Convert to fraction form
    697,936.70/963,084.63 = 391,943.51/x
  3. Step 3: Cross multiply
    697,936.70x = 963,084.63 × 391,943.51
  4. Step 4: Simplify right side
    697,936.70x = 377,474,770,575.18
  5. Step 5: Solve for x
    x = 377,474,770,575.18/697,936.70
  6. Step 6: Final answer
    x = 540,843.85

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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.