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Finding the Fourth Proportional to 294,080.40, 439,128.64 and 233,428.41

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Solution

The fourth proportional to 294,080.40, 439,128.64 and 233,428.41 is: 348,561.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,080.40 : 439,128.64 = 233,428.41 : x
  2. Step 2: Convert to fraction form
    294,080.40/439,128.64 = 233,428.41/x
  3. Step 3: Cross multiply
    294,080.40x = 439,128.64 × 233,428.41
  4. Step 4: Simplify right side
    294,080.40x = 102,505,100,220.66
  5. Step 5: Solve for x
    x = 102,505,100,220.66/294,080.40
  6. Step 6: Final answer
    x = 348,561.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.