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Finding the Fourth Proportional to 619,573.14, 854,958.51 and 347,604.30

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Solution

The fourth proportional to 619,573.14, 854,958.51 and 347,604.30 is: 479,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,573.14 : 854,958.51 = 347,604.30 : x
  2. Step 2: Convert to fraction form
    619,573.14/854,958.51 = 347,604.30/x
  3. Step 3: Cross multiply
    619,573.14x = 854,958.51 × 347,604.30
  4. Step 4: Simplify right side
    619,573.14x = 297,187,254,397.59
  5. Step 5: Solve for x
    x = 297,187,254,397.59/619,573.14
  6. Step 6: Final answer
    x = 479,664.52

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Double scale
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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.