Home / 514,334.40-709,761.06-287,975.04

Finding the Fourth Proportional to 514,334.40, 709,761.06 and 287,975.04

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Solution

The fourth proportional to 514,334.40, 709,761.06 and 287,975.04 is: 397,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,334.40 : 709,761.06 = 287,975.04 : x
  2. Step 2: Convert to fraction form
    514,334.40/709,761.06 = 287,975.04/x
  3. Step 3: Cross multiply
    514,334.40x = 709,761.06 × 287,975.04
  4. Step 4: Simplify right side
    514,334.40x = 204,393,469,643.94
  5. Step 5: Solve for x
    x = 204,393,469,643.94/514,334.40
  6. Step 6: Final answer
    x = 397,394.13

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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.