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Finding the Fourth Proportional to 522,052.44, 720,368.19 and 318,029.33

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Solution

The fourth proportional to 522,052.44, 720,368.19 and 318,029.33 is: 438,841.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,052.44 : 720,368.19 = 318,029.33 : x
  2. Step 2: Convert to fraction form
    522,052.44/720,368.19 = 318,029.33/x
  3. Step 3: Cross multiply
    522,052.44x = 720,368.19 × 318,029.33
  4. Step 4: Simplify right side
    522,052.44x = 229,098,209,217.17
  5. Step 5: Solve for x
    x = 229,098,209,217.17/522,052.44
  6. Step 6: Final answer
    x = 438,841.37

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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.