Home / 447,327.37-617,328.75-256,377.61

Finding the Fourth Proportional to 447,327.37, 617,328.75 and 256,377.61

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Solution

The fourth proportional to 447,327.37, 617,328.75 and 256,377.61 is: 353,810.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,327.37 : 617,328.75 = 256,377.61 : x
  2. Step 2: Convert to fraction form
    447,327.37/617,328.75 = 256,377.61/x
  3. Step 3: Cross multiply
    447,327.37x = 617,328.75 × 256,377.61
  4. Step 4: Simplify right side
    447,327.37x = 158,269,269,509.29
  5. Step 5: Solve for x
    x = 158,269,269,509.29/447,327.37
  6. Step 6: Final answer
    x = 353,810.83

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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.