Home / 691,674.56-954,584.28-405,435.14

Finding the Fourth Proportional to 691,674.56, 954,584.28 and 405,435.14

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Solution

The fourth proportional to 691,674.56, 954,584.28 and 405,435.14 is: 559,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,674.56 : 954,584.28 = 405,435.14 : x
  2. Step 2: Convert to fraction form
    691,674.56/954,584.28 = 405,435.14/x
  3. Step 3: Cross multiply
    691,674.56x = 954,584.28 × 405,435.14
  4. Step 4: Simplify right side
    691,674.56x = 387,022,011,203.60
  5. Step 5: Solve for x
    x = 387,022,011,203.60/691,674.56
  6. Step 6: Final answer
    x = 559,543.51

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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.