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Finding the Fourth Proportional to 619,270.84, 854,525.42 and 347,282.76

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Solution

The fourth proportional to 619,270.84, 854,525.42 and 347,282.76 is: 479,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,270.84 : 854,525.42 = 347,282.76 : x
  2. Step 2: Convert to fraction form
    619,270.84/854,525.42 = 347,282.76/x
  3. Step 3: Cross multiply
    619,270.84x = 854,525.42 × 347,282.76
  4. Step 4: Simplify right side
    619,270.84x = 296,761,945,079.65
  5. Step 5: Solve for x
    x = 296,761,945,079.65/619,270.84
  6. Step 6: Final answer
    x = 479,211.89

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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.