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Finding the Fourth Proportional to 613,571.22, 920,419.66 and 234,810.53

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Solution

The fourth proportional to 613,571.22, 920,419.66 and 234,810.53 is: 352,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,571.22 : 920,419.66 = 234,810.53 : x
  2. Step 2: Convert to fraction form
    613,571.22/920,419.66 = 234,810.53/x
  3. Step 3: Cross multiply
    613,571.22x = 920,419.66 × 234,810.53
  4. Step 4: Simplify right side
    613,571.22x = 216,124,228,187.02
  5. Step 5: Solve for x
    x = 216,124,228,187.02/613,571.22
  6. Step 6: Final answer
    x = 352,239.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.