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Finding the Fourth Proportional to 578,146.98, 866,722.12 and 223,409.91

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Solution

The fourth proportional to 578,146.98, 866,722.12 and 223,409.91 is: 334,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,146.98 : 866,722.12 = 223,409.91 : x
  2. Step 2: Convert to fraction form
    578,146.98/866,722.12 = 223,409.91/x
  3. Step 3: Cross multiply
    578,146.98x = 866,722.12 × 223,409.91
  4. Step 4: Simplify right side
    578,146.98x = 193,634,310,824.21
  5. Step 5: Solve for x
    x = 193,634,310,824.21/578,146.98
  6. Step 6: Final answer
    x = 334,922.29

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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.