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Finding the Fourth Proportional to 620,575.09, 932,263.97 and 368,021.24

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Solution

The fourth proportional to 620,575.09, 932,263.97 and 368,021.24 is: 552,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,575.09 : 932,263.97 = 368,021.24 : x
  2. Step 2: Convert to fraction form
    620,575.09/932,263.97 = 368,021.24/x
  3. Step 3: Cross multiply
    620,575.09x = 932,263.97 × 368,021.24
  4. Step 4: Simplify right side
    620,575.09x = 343,092,942,246.72
  5. Step 5: Solve for x
    x = 343,092,942,246.72/620,575.09
  6. Step 6: Final answer
    x = 552,862.90

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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.