Home / 638,725.97-881,578.63-366,943.72

Finding the Fourth Proportional to 638,725.97, 881,578.63 and 366,943.72

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Solution

The fourth proportional to 638,725.97, 881,578.63 and 366,943.72 is: 506,460.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,725.97 : 881,578.63 = 366,943.72 : x
  2. Step 2: Convert to fraction form
    638,725.97/881,578.63 = 366,943.72/x
  3. Step 3: Cross multiply
    638,725.97x = 881,578.63 × 366,943.72
  4. Step 4: Simplify right side
    638,725.97x = 323,489,741,964.70
  5. Step 5: Solve for x
    x = 323,489,741,964.70/638,725.97
  6. Step 6: Final answer
    x = 506,460.92

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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.