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Finding the Fourth Proportional to 622,148.40, 932,531.40 and 341,866.80

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Solution

The fourth proportional to 622,148.40, 932,531.40 and 341,866.80 is: 512,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,148.40 : 932,531.40 = 341,866.80 : x
  2. Step 2: Convert to fraction form
    622,148.40/932,531.40 = 341,866.80/x
  3. Step 3: Cross multiply
    622,148.40x = 932,531.40 × 341,866.80
  4. Step 4: Simplify right side
    622,148.40x = 318,801,525,617.52
  5. Step 5: Solve for x
    x = 318,801,525,617.52/622,148.40
  6. Step 6: Final answer
    x = 512,420.39

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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.