Home / 662,870.27-914,735.23-405,178.68

Finding the Fourth Proportional to 662,870.27, 914,735.23 and 405,178.68

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Solution

The fourth proportional to 662,870.27, 914,735.23 and 405,178.68 is: 559,130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,870.27 : 914,735.23 = 405,178.68 : x
  2. Step 2: Convert to fraction form
    662,870.27/914,735.23 = 405,178.68/x
  3. Step 3: Cross multiply
    662,870.27x = 914,735.23 × 405,178.68
  4. Step 4: Simplify right side
    662,870.27x = 370,631,213,040.90
  5. Step 5: Solve for x
    x = 370,631,213,040.90/662,870.27
  6. Step 6: Final answer
    x = 559,130.84

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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.