Home / 545,629.97-752,969.50-316,320.17

Finding the Fourth Proportional to 545,629.97, 752,969.50 and 316,320.17

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Solution

The fourth proportional to 545,629.97, 752,969.50 and 316,320.17 is: 436,521.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,629.97 : 752,969.50 = 316,320.17 : x
  2. Step 2: Convert to fraction form
    545,629.97/752,969.50 = 316,320.17/x
  3. Step 3: Cross multiply
    545,629.97x = 752,969.50 × 316,320.17
  4. Step 4: Simplify right side
    545,629.97x = 238,179,435,689.17
  5. Step 5: Solve for x
    x = 238,179,435,689.17/545,629.97
  6. Step 6: Final answer
    x = 436,521.91

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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.