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Finding the Fourth Proportional to 624,501.50, 861,814.69 and 369,836.28

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Solution

The fourth proportional to 624,501.50, 861,814.69 and 369,836.28 is: 510,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,501.50 : 861,814.69 = 369,836.28 : x
  2. Step 2: Convert to fraction form
    624,501.50/861,814.69 = 369,836.28/x
  3. Step 3: Cross multiply
    624,501.50x = 861,814.69 × 369,836.28
  4. Step 4: Simplify right side
    624,501.50x = 318,730,338,074.36
  5. Step 5: Solve for x
    x = 318,730,338,074.36/624,501.50
  6. Step 6: Final answer
    x = 510,375.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.