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Finding the Fourth Proportional to 619,067.01, 854,253.12 and 347,146.38

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Solution

The fourth proportional to 619,067.01, 854,253.12 and 347,146.38 is: 479,028.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,067.01 : 854,253.12 = 347,146.38 : x
  2. Step 2: Convert to fraction form
    619,067.01/854,253.12 = 347,146.38/x
  3. Step 3: Cross multiply
    619,067.01x = 854,253.12 × 347,146.38
  4. Step 4: Simplify right side
    619,067.01x = 296,550,878,211.71
  5. Step 5: Solve for x
    x = 296,550,878,211.71/619,067.01
  6. Step 6: Final answer
    x = 479,028.72

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1.5x scale

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.