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Finding the Fourth Proportional to 570,322.20, 854,792.10 and 254,443.80

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Solution

The fourth proportional to 570,322.20, 854,792.10 and 254,443.80 is: 381,357.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,322.20 : 854,792.10 = 254,443.80 : x
  2. Step 2: Convert to fraction form
    570,322.20/854,792.10 = 254,443.80/x
  3. Step 3: Cross multiply
    570,322.20x = 854,792.10 × 254,443.80
  4. Step 4: Simplify right side
    570,322.20x = 217,496,550,133.98
  5. Step 5: Solve for x
    x = 217,496,550,133.98/570,322.20
  6. Step 6: Final answer
    x = 381,357.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.