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Finding the Fourth Proportional to 620,573.24, 930,869.21 and 236,343.36

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Solution

The fourth proportional to 620,573.24, 930,869.21 and 236,343.36 is: 354,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,573.24 : 930,869.21 = 236,343.36 : x
  2. Step 2: Convert to fraction form
    620,573.24/930,869.21 = 236,343.36/x
  3. Step 3: Cross multiply
    620,573.24x = 930,869.21 × 236,343.36
  4. Step 4: Simplify right side
    620,573.24x = 220,004,757,402.80
  5. Step 5: Solve for x
    x = 220,004,757,402.80/620,573.24
  6. Step 6: Final answer
    x = 354,518.60

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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.