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Finding the Fourth Proportional to 522,455.01, 720,996.03 and 293,063.22

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Solution

The fourth proportional to 522,455.01, 720,996.03 and 293,063.22 is: 404,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,455.01 : 720,996.03 = 293,063.22 : x
  2. Step 2: Convert to fraction form
    522,455.01/720,996.03 = 293,063.22/x
  3. Step 3: Cross multiply
    522,455.01x = 720,996.03 × 293,063.22
  4. Step 4: Simplify right side
    522,455.01x = 211,297,418,159.02
  5. Step 5: Solve for x
    x = 211,297,418,159.02/522,455.01
  6. Step 6: Final answer
    x = 404,431.80

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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.