Home / 447,623.08-617,802.66-256,637.80

Finding the Fourth Proportional to 447,623.08, 617,802.66 and 256,637.80

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Solution

The fourth proportional to 447,623.08, 617,802.66 and 256,637.80 is: 354,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,623.08 : 617,802.66 = 256,637.80 : x
  2. Step 2: Convert to fraction form
    447,623.08/617,802.66 = 256,637.80/x
  3. Step 3: Cross multiply
    447,623.08x = 617,802.66 × 256,637.80
  4. Step 4: Simplify right side
    447,623.08x = 158,551,515,496.55
  5. Step 5: Solve for x
    x = 158,551,515,496.55/447,623.08
  6. Step 6: Final answer
    x = 354,207.64

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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.