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Finding the Fourth Proportional to 619,174.08, 854,388.72 and 347,242.50

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Solution

The fourth proportional to 619,174.08, 854,388.72 and 347,242.50 is: 479,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,174.08 : 854,388.72 = 347,242.50 : x
  2. Step 2: Convert to fraction form
    619,174.08/854,388.72 = 347,242.50/x
  3. Step 3: Cross multiply
    619,174.08x = 854,388.72 × 347,242.50
  4. Step 4: Simplify right side
    619,174.08x = 296,680,075,104.60
  5. Step 5: Solve for x
    x = 296,680,075,104.60/619,174.08
  6. Step 6: Final answer
    x = 479,154.55

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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.