Home / 409,828.90-565,561.41-228,543.07

Finding the Fourth Proportional to 409,828.90, 565,561.41 and 228,543.07

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Solution

The fourth proportional to 409,828.90, 565,561.41 and 228,543.07 is: 315,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,828.90 : 565,561.41 = 228,543.07 : x
  2. Step 2: Convert to fraction form
    409,828.90/565,561.41 = 228,543.07/x
  3. Step 3: Cross multiply
    409,828.90x = 565,561.41 × 228,543.07
  4. Step 4: Simplify right side
    409,828.90x = 129,255,140,914.93
  5. Step 5: Solve for x
    x = 129,255,140,914.93/409,828.90
  6. Step 6: Final answer
    x = 315,388.06

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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.