Home / 447,377.13-617,405.99-256,422.33

Finding the Fourth Proportional to 447,377.13, 617,405.99 and 256,422.33

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Solution

The fourth proportional to 447,377.13, 617,405.99 and 256,422.33 is: 353,877.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,377.13 : 617,405.99 = 256,422.33 : x
  2. Step 2: Convert to fraction form
    447,377.13/617,405.99 = 256,422.33/x
  3. Step 3: Cross multiply
    447,377.13x = 617,405.99 × 256,422.33
  4. Step 4: Simplify right side
    447,377.13x = 158,316,681,229.65
  5. Step 5: Solve for x
    x = 158,316,681,229.65/447,377.13
  6. Step 6: Final answer
    x = 353,877.46

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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.