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Finding the Fourth Proportional to 476,064.96, 656,371.80 and 348,519.12

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Solution

The fourth proportional to 476,064.96, 656,371.80 and 348,519.12 is: 480,518.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,064.96 : 656,371.80 = 348,519.12 : x
  2. Step 2: Convert to fraction form
    476,064.96/656,371.80 = 348,519.12/x
  3. Step 3: Cross multiply
    476,064.96x = 656,371.80 × 348,519.12
  4. Step 4: Simplify right side
    476,064.96x = 228,758,122,128.82
  5. Step 5: Solve for x
    x = 228,758,122,128.82/476,064.96
  6. Step 6: Final answer
    x = 480,518.71

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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.