Home / 371,919.51-513,229.24-210,776.49

Finding the Fourth Proportional to 371,919.51, 513,229.24 and 210,776.49

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Solution

The fourth proportional to 371,919.51, 513,229.24 and 210,776.49 is: 290,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,919.51 : 513,229.24 = 210,776.49 : x
  2. Step 2: Convert to fraction form
    371,919.51/513,229.24 = 210,776.49/x
  3. Step 3: Cross multiply
    371,919.51x = 513,229.24 × 210,776.49
  4. Step 4: Simplify right side
    371,919.51x = 108,176,657,772.57
  5. Step 5: Solve for x
    x = 108,176,657,772.57/371,919.51
  6. Step 6: Final answer
    x = 290,860.40

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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.